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This American slide rule manufacturer was founded in 1885 by Eugene Dietzgen. The first manufacturing company opened in 1893 producing T-squares, wooden triangles, drawing boards, hectograph inks, surveying instruments, blue print and Van Dyke papers, Dietzgen's historic line of engineering products. In 1908 the company acquired its own drafting instruments factory in Germany and introduced their "Lifetime Service Policy" on drafting Instruments. The company later OEM'ed slide rules from Faber-Castell and other engineering items and drafting instruments from Germany and from Ricoh in Japan for the American Market. Often mistaken for K&E slide rules, as many parts are interchangeable as the physical dimensions and construction are similar. The main factory and head office was in Chicago, Illinois, and branch offices were in New York, San Francisco, New Orleans, Pittsburgh and Los Angeles.



L04 Dietzgen 1742 20 inch - Phillips


L04 Dietzgen 1742 20 inch - Phillips
Made in USA
Front Scale: 20inch // E, A [ B, R, C ] D || 50cm
Back Slider: [ S, L, T ] Back: Equivalents


L05 Dietzgen  1752P 20 inch - Maniphase


L05 Dietzgen  1752P 20 inch - Maniphase
Made in USA
Front Scale: 20inch // K, A [ B, CI, C ] D || 50cm
Back Slider: [ S, L, T ] Back: Equivalents

Instructions (1.02MB)


Dietzgen Mannheim (D&P) Improved Slide Rule
Patent June 28, 1898

ISRM 2012.10.22.01


Major Paul C. Allred
Fort Lewis, Washington

Case
Dietzgen Mannheim (D&P) Improved Slide Rule
Patent June 28, 1898

Made in Germany by Dennert and Pape for Eugene Dietzgen Co.
Front Scale
10inch // A [ B, C ] D || 27cm
Back Scale
[ S, L, T ] Back: Equivalents
Note: Very early 'railroad track' style divisions
Original Owner: F.P. Sisson (name on case and in well), then owned and used by Major Paul C. Allred, US Army.
Donated by Pamela Lanier Wolfe Browne, Kernersville, North Carolina
This slide rule was acquired in Germany and used by Major Paul C. Allred, US Army. (1916 - 1979). Paul joined the Army on April 11, 1934. He served as a surveyor in the Infantry Artillery most of his career in the battles and campaigns in Normandy, Northern France, Rhineland, Ardennes, Central Europe, and Korea. He was awarded the Eamet Campaign Medal with 5 Bronze stars, Good Conduct Medal, WWII victory medal, Koren Service Medal, Bronze Star Medal with oak leaf cluster, and a National Defense Service Medal. He retired in 1962. He thenb worked as a surveyor for the North Carolina Departement of Transportation, Greesboro, until retirement in 1977. Sometime while working for the state he began using a Texas Instrument calculator, but still checked his answers on his trustworthy slide rule. (Paul was Pamela's Godmother's husband)
Note: Pamela Browne is the widow of Harry Edson Browne (1933-2006). Harry Browne was an inspirational speaker who wrote 19 books that sold more than 2 million copies. In 1996 and 2000 he was the nominee of the Libertarian Party for President of the United States. Pamela's personal slide rule, a Fullerton-Acu 1240, along with photo, may be seen in the Acumath gallery.


REF Eugene Dietzgen Pocket Slide Rule
Eugene Dietzgen Pocket Slide Rule
Made in Germany - c 1915
Front Scale
A [ B, C ] D
Back Scale
5in [ S, L, T ] 12.5cm
Archive - Scan provided by Cassou Olivier Collection, France


ISRM - Dietzgen N1725 Microglide Vector Log Log
Dietzgen N1725 Microglide Vector Log Log c1948
Made in USA - 25 scales s/n 013933
Front Scale
Th, Sh2, Sh1, A [ B, T<45 Cot, T>45 Cot, ST, S Cos ] D, DI, K
Rear Scale
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1


REF - Dietzgen N1725 Microglide Vector Log Log
Dietzgen N1725 Microglide Vector Log Log c1948
Made in USA - 25 scales s/n 112565
Front Scale
Th, Sh2, Sh1, A [ B, T<45 Cot, T>45 Cot, ST, S Cos ] D, DI, K
Rear Scale
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Original Owner: John Lund Washington
Archive - No longer in collection


REF Dietzgen B-1725 (Bamboo) Vector Type Log Log
Dietzgen B-1725 (Bamboo) Vector Type Log Log c1965
Made in Japan by Ricoh for Dietzgen - 25 scales
Front Scale
Th, Sh2, Sh1, A [ B, T<45 Cot, T>45 Cot, ST, S Cos ] D, DI, K
Rear Scale
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Archive: Larry Kehl collection


S453 Dietzgen 1731 Trigonometric  Log Log
Dietzgen 1731 - Trigonometric  Log Log - s/n 401056
Made in USA - Maniphase Multiplex  -20 scales
Note: Degrees divided in 12 divisions - minutes and seconds
Front Scale
LL01, K, A [ B, T Cot, ST, S Cos ] D, L, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2
Original Owner: John Coonrod



S295 Dietzgen 1732 Decimal Trig Log Log
Dietzgen 1732 - Decimal Trig Log Log - No s/n
Made in USA - Maniphase Multiplex - Early cursor -20 scales
Note: Degrees divided in 10 divisions - decimals
Front Scale
LL0, LL00, A [ B, T Cot, ST, S Cos ] D, DI, K
Rear Scale
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2



ISRM Dietzgen 1732 Decimal Trig Log Log
Dietzgen 1732 - Decimal Trig Log Log - s/n 536054
Made in USA - Maniphase Multiplex - Early cursor -20 scales
Note: Degrees divided in 10 divisions - decimals
Front Scale
LL0, LL00, A [ B, T Cot, ST, S Cos ] D, DI, K
Rear Scale
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2

Typical Retail Box


S454 Dietzgen 1732 Decimal Trig Log Log
Dietzgen 1732 - Decimal Trig Log Log - s/n 574062
Made in USA - c1956  -21 scales - Re-arranged Text
Note: Degrees divided in 10 divisions - decimals
Front Scale
LL01, L, K, A [ B, T Cot, ST, S Cos ] D, DI, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2


Case labeled "Dietzgen Germany"
Original owner: Michael P. Taylor, retired Director Dow Chemical. Graduated Univ of Houston, TX. Taught at TAMU and UH. Designed/Built the Houston Dow Center &Dow Chemical plant in Toronto.


S248 Dietzgen 1732 Decimal Trig Log Log
Dietzgen 1732 - Decimal Trig Log Log - s/n 518372
Made in USA - 20 scales
Note: Degrees divided in 10 divisions - decimals
Front Scale
LL0, LL00, A [ B, T Cot, ST, S Cos ] D, DI, K
Rear Scale
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Previous owner: J.D. Hiller


S287 Dietzgen 1733 Polymath Decimal Trig Log Log
Dietzgen 1733 - Polymath Decimal Trig Log Log
Made in USA - 20 scales - S/N B506105
Front Scale
LL01, K, A [ B, T Cot, ST, S  Cos ] D, L, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2
Previous owner:  Eugene Mulder, On slide: R.L.F.Z



ISRM Dietzgen N1733 Polymath Multiplex
Decimal Trig Type Log Log


ISRM Eugene Dietzgen Co. Insert Copyright 1950
Form No. 1700-SRT/500B/PN25
Dietzgen N1733 - Polymath Multiplex Decimal Trig Type Log Log
Made in USA - 21 scales - S/N 080525 - 1962
Patents: Stock: 2,170,144; 2,285,722. Cursor: 2,634,912
Front Scale (same as 1734)
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos  ] D, DI, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2
Original Owner: Harold John Morgan, Chesapeak Beach, Maryland. Purchased 1962, used at PSU for EE degree. Worked for FCC, retired 2004.


Dietzgen 1734 Microglide Decimal Trig Log Log

ISRM 12.06.24.24

Dietzgen 1734 - Microglide Decimal Trig Log Log
Made in USA - 22 scales - S/N 056181 - c1947
Front Scale
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos  ] D, DI, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2
Donated by Anonymous collector and daughter .
The collector, who prefers to remain anonymous, obtained a B.S. degree in Physics from Taiwan's National Tsing Hua University in 1971. His love for computation has encouraged him to build a collection of slide rules, HP and TI calculators, as well as abaci, many displayed at ISRM.


S466 Dietzgen B-1734 Decimal Trig Log Log
Dietzgen B-1734 Decimal Trig Log Log
Made in Japan by Relay/Ricoh for Dietzgen - c1960
Note: the 'B' in the model number stands for Bamboo.
Front Scale
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos  ] D, DI, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2


REF Dietzgen G-1734 Microglide Decimal Trig Log Log
Dietzgen G-1734 Microglide Decimal Trig Log Log
Made in Germany by Faber-Castell for Dietzgen - c1970
Note: the 'G' in the model number stands for 'Geroplast' plastic.
Front Scale
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos  ] D, DI, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2
Archive - Larry Kehl Collection


S508 Dietzgen 1735 Vector Type Log Log
Dietzgen 1735 Vector Type Log Log
Made in USA - 21 scales - S/N 104640 - Early Frameless Cursor
Front Scale
LL0, LL00, A [ B, T Cot,  ST, S Cos  ] D, Th, Sh2, Sh1
Rear Scale
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Original Owner: W.H. Camp


S328 Dietzgen 1737 Microglide Decimal Trig Type Log Log
Dietzgen 1737 -  Decimal Type Trig Log Log
Made in Japan by Relay/Ricoh - 22 scales Bamboo stock
Front Scale
K, A [ B, S Cos, T1 Ctg1, T2 Ctg2, C ] D, DI, L
Rear Scale
LL1, LL2, LL3, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1


S113 Dietzgen 1738 Multilog Multiplex Style-M (c1954)
Dietzgen 1738 Multilog Multiplex Style M (Metal cursor bars)
Made in Germany, 1954 - 22 scales Improved Dec Trig Log Log; Painted Aluminum Stock,
Front Scale
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos  ] D, DI, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2


Dietzgen 1738 Multilog Multiplex Style-M (c1954)

ISRM 12.06.24.25
Dietzgen 1738 Multilog Multiplex Style M (Plastic cursor bars)
Made in Germany, 1954 - 22 scales Improved Dec Trig Log Log; Painted Aluminum Stock,
Front Scale
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos  ] D, DI, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2
Donated by Anonymous collector and daughter .


ISRM Dietzgen 1738 Multiphase Style-M (c1954)
Dietzgen 1738 Multiphase Style-M (Plastic cursor bars/Green slide)
Made in Germany, c1954 - 22 scales Improved Dec Trig Log Log; Painted Aluminum Stock
Front Scale
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos  ] D, DI, LL1
Rear Scale
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2
Original Owner: E. Nosco (Sgt) Wickcliff, Ohio, and D.A. Miller (both marked on brown leather sleeve flap)


S357 Dietzgen 1739-L Clear-Scale
Dietzgen 1739-L Clear-Scale
Made in Germany, 1954 - 23 scales Improved Dec Trig Log Log
Front Scale
L, K, A [ B, CI,  C  ] D, LL1, LL2, LL3
Rear Scale
T1 Cot, T2 Cot, DF [ CF, CIF, CI, C ]  D, S Cos, ST, P


Dietzgen Phillips 1740

ISRM 2012.06.18.04

Dietzgen Phillips 1740
Made in Germany
Front Scale
10inch // K, A [ B, R, C ] D || 25cm
Back Scale
[ S, L, T ] Back: Equivalents
This slide rule was put on eBay by RAdm Rhoad's grandson.
This slide rule was used by Rear Admiral Forrest (Dusty) Rhoads prior to or during WWII. He later bought a Hemmi 153 in 1949 which can be seen in the Sun Hemmi Gallery.

Forrest Alexis Rhoads (1898-1965) was a career naval officer in the United States Navy and his career spanned from an Apprentice Seaman to Rear Admiral and he served in both WWI and WWII. The pictures show him in rank from apprentice Seaman (on left, 1916 on the USS South Dakota), Seaman 1st Class (on left, c1920), Captain (1947), Rear Admiral (on right, 1949) and his final promotion at the National Memorial Cemetary in Honolulu, Hawaii (1965). See an expanded biography at ancestry.com.


REF Dietzgen 1741 Novo Biplex
Dietzgen 1741 Novo Biplex
Made in Germany for Dietzgen
Front Scale
K, T1 Cot, T245 Cot DF [ CF, CIF, CI, C ] D, S Cos, ST, P
Rear Scale
LL03, LL02, LL03, W2 [ W2', L, C, W1'  ] W1, LL1, LL2, LL3
Archive - Rod Lovett Collection


S338 Dietzgen 1743 Polymath Multiplex Trigonometric
Dietzgen 1743 Polymath Multiplex Trigonometric
Made in USA - 15 scales - S/N 175663
Note: Degrees divided in 12 divisions - minutes and seconds
Front Scale
K, A [ B, T Cot, ST, S Cos ] D, DI
Rear Scale
DF [ CF, CIF, CI, C ] D, L


Dietzgen 1744 Polymath Multiplex Decimal Trig

ISRM 12.06.24.29
Dietzgen 1744 Polymath Multiplex Decimal Trig
Made in USA - 15 scales - S/N 300543
Front Scale
K, A [ B, T Cot, ST, S Cos ] D, DI
Rear Scale
DF [ CF, CIF, CI, C ] D, L
Donated by Anonymous collector and daughter .



Dietzgen 1745LM USMC Issue - Magnifying Cursor

ISRM 2011.10.28.02
Dietzgen 1745LM USMC Issue - Magnifying/Frameless Cursor
Made in USA - 11 scales - No S/N
Front Scale
K, A [ B, CI, C ] D
Rear Scale
A [ S, T ] D, L
Purchased at a Denver Antique Store in 2011


S485 Dietzgen 1745 - Early Frameless Cursor
Dietzgen 1745 - Early Frameless Cursor
Made in USA - 11 scales - No S/N
Front Scale
K, A [ B, CI, C ] D
Rear Scale
A [ S, T ] D, L



S480 Dietzgen 1745 - K&E Cursor
Dietzgen 1745 - K&E Cursor
Made in USA - 11 scales - No S/N
Front Scale
K, A [ B, CI, C ] D
Rear Scale
A [ S, T ] D, L
Note: Has a K&E cursor like S300 Dietzgen 1759.


S479 Dietzgen 1746 Maniphase Multiplex - Early Cursor


S479 Dietzgen 1746 Maniphase Multiplex - Recon. Cursor
Dietzgen 1746 Maniphase Multiplex - Early Cursor
Made in USA - 12 scales - No S/N
Front Scale: A [ B, S, T ] D, K
Rear Scale: DF [ CF, CIF, CI, C ] D, L
Note: has same KERCS problem as early K&E's
Original Owner: Franklin James Sullivan, (1914-1992) born in Wilmington, Delaware. Cost Analyst at Baldwin's outside of Philadelphia, PA(1940-1945), then at Atlas Powder Company (Du Pont)/ICI. Had 3 daughters, one provided this slide rule.



Dietzgen 1746 Maniphase Multiplex - 1926 Early Cursor

ISRM 13.05.04.01


Mines Award

Dietzgen 1746 Original Cursor (1926)
The slide rule as above has a restored cursor, to replace the crumbling original shown on left. The early lens and metal lens brackets were retained, a SIC (Relay) cursor spacers were modified, drilled and tapped with 1-72 UNF threads, to accept new screws (K&E uses 1-72's). This gives this 'old soldier' a new life.
Dietzgen 1746 Maniphase Multiplex - Early Cursor - sn702167
Made in USA - 12 scales
Front Scale: A [ B, S, T ] D, K
Rear Scale: DF [ CF, CIF, CI, C ] D, L
Note: had same KERCS problem as early K&E's
Gift of Barbara Emmett of Dallas, TX, daughter of W.P. Morris.

Original Owner: William Page Morris. He used this slide rule while attending the Colorado School of Mines and later in his career. The following biography was written in 1969 when he received The American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) AIME Charles F. Rand Memorial Gold Medal: "William Page Morris was president and a director of the Duval Corporation of Houston, Texas. During his 38-year career in mining, he has given unselfishly of his time and talents to numerous associations. Mr. Morris received his degree in mining engineering from the Colorado School of Mines in 1930. He began his mining career a year later with Valier Coal Company in Valier, Illinois. In 1932 he joined United States Potash Company in Carlsbad, N. M. and stayed until 1940, worked first as an underground motorman and later (1934-1940) as a safety and haulage engineer. In 1940 Morris went to work for International Minerals & Chemical Corporation in Carlsbad and stayed on until 1949 when he joined Duval Corporation as general superintendent. At Duval he was named vice president and assistant general manager in 1954, executive vice president in March, 1957, and president in June, 1957. In October of 1967 he was appointed president and a director of Duval Sierrita Corporation and in September of 1968 president and a director of Duval Corporation of Canada. He is also a director of Duval Sales Corporation. Mr. Morris is a director of The Sulphur Institute, the American Potash Institute, Inc., and the New Mexico Mining Association. He was the 1962 recipient of the Distinguished Achievement Award of the Colorado School of Mines."



S302 Dietzgen 1746 Maniphase Multiplex
Dietzgen 1746 Maniphase Multiplex
Made in USA - 14 scales - sn7132132
Front Scale
A [ B, T, ST, S ] D, K
Rear Scale
DF [ CF, CIF, CI, C ] D, L


S355 Dietzgen 1749 Style-M Dec Trig Maniphase
Dietzgen 1749 Style-M Dec Trig Maniphase
Made in Germany - 1959 - 15 scales
Metal stock, powder coated, silkscreened scales
Front Scale
K, A [ B, T, ST, S ] D, DI
Rear Scale
DF [ CF, CIF, CI, C ] D, L


S562 Dietzgen 1750P Maniphase
S364 Dietzgen 1750P Maniphase
Made in USA - pre1938 - 9 scales
Front Scale
10in // E/K, A [ B, R/CI, C ] D || 25cm
Rear Scale
[ S, L, T ]

This was a manufacturing transition that re-labeled both E as K and R as CI. The later was an error in implementation as R = 1/A, (100-10-1, the Phillips scale) and CI =1/C (10-1). The divisions on the center scale of the slide are for the CI or Reciprocal scale of C.


S364 Dietzgen 1750P Maniphase
Dietzgen 1750P Maniphase
Made in USA - 1938 - 9 scales
Front Scale
10in // K, A [ B, CI, C ] D || 25cm
Rear Scale
[ S, L, T ]


REF Dietzgen 1751 - Industrial Slide Rule
Dietzgen 1751 - Industrial Slide Rule
Made in USA
Front Scale
Feed, Length of Cut [ RPM, Time, Cutting Speed ] D
Rear Scale
L, A [ B, CI, C ] D, K
Scan provided by Jim Cerny, New Castle, New Hampshire
1950 Catalog Description


P259 Dietzgen 1755L Mannheim 5"
P259 Dietzgen 1755L Mannheim 5"
Made in USA - 1938 - 7 scales
Front Scale
5in // A [ B, C ] D || 12.5cm
Rear Scale
[ S, L, T ]
Note: Early Dietzgen slide rules has a model number suffix of 'P' to deonte a 'Plain' cardboard case. A suffix of 'L' is used for a sewed 'Leather' case.


S442 Dietzgen 1757 Primatrig
Dietzgen 1757 Primatrig
Made in USA by Acu-Rule for Dietzgen - All Plastic Stock/slide, metal ends. Similar to (S427) Acu-Math 600 Basic Trig
Front Scale
L, K, A [ B, CI, C ] D, T Cot, ST, S Cos
Rear Scale
Trig Identities [ Decimal to Fractions ] Equivalents

Same as S427 Acu-Math 600 Basic Trig (scales rearranged)


ISRM Dietzgen 1757 Primatrig
Dietzgen 1757 Primatrig
Made in USA by Acu-Rule for Dietzgen - All Plastic Stock/slide/ends
Front Scale
L, K, A [ B, CI, C ] D, T Cot, ST, S Cos
Rear Scale
Trig Identities [ Decimal to Fractions ] Equivalents
Donated By Scott Reynolds, (Vintage Calculators, Inc), Helmut, California


S170 Dietzgen Phillips 1759B
Dietzgen Phillips 1759B - Closed Simplex
Made in USA
Front Scale
10inch //  A [ B, R, C ] D || E
Back Slider
[ S, L, T ] Back: Equivalents
Original Owner: Earl G. Larsen


S300 Dietzgen - Phillips 1759
Dietzgen  -  Phillips 1759
Made in USA - Has K&E 4053 type Cursor
Front Scale: 10inch // A [ B, R, C ] D || E
Back Scale: [ S, L, T ], Equivalents
Original Owner: A. G. Rogers


S213 Dietzgen Multiplex 1760B
Dietzgen Multiplex 1760B - Closed Simplex
Made in USA
Note: Degrees divided in 10 divisions - decimal
Front Scale
10inch // A [ B, C ] D || E
Back Slider
[ S, L, T ] Back: Equivalents


ISRM Dietzgen 1760 Mannheim
Dietzgen 1760 Mannheim - Closed Simplex
Made in USA - Missing Cursor
Note: Degrees divided in 10 divisions - decimal
Front Scale
10inch // A [ B, C ] D || 25cm
Back Slider
[ S, L, T ] Back: Equivalents
Donated by David Hecht, Alexandria, Virginia


S368 Dietzgen 1760P Mannheim
Dietzgen 1760P Mannheim - Closed Simplex
Made in USA
Note: Degrees divided in 12 divisions - minutes and seconds
Front Scale
10inch // A [ B, C ] D || 25cm
Back Slider
[ S, L, T ] Back: Equivalents
Original Owner: F.H.W.


S473 Dietzgen 1762B sn3746A - Patent June 28, 1898
Dietzgen 1762B sn3746A - Patent June 28, 1898
Made in USA by Eugene Dietzgen Co.
Patent Markings: June 28, 1898, Patent Aug 9, 1904
Note: Combination BI-1-B scale, Index in center of scale
Front Scale: 10inch // A [ BI-1-B, C ] D || LL
Back Slider: [ S, L, T ]
Back: Equivalents
Original Owner: R.C.L. Greer


REF Dietzgen 1763-AL Mannheim sn7625A
Dietzgen 1763-AL Mannheim sn7625A
Made in USA by Eugene Dietzgen Co.
Patent Markings: June 28, 1898, Patent Aug 9, 1904
Note: Combination BI-1-B scale, Index in center of scale
Front Scale: 8inch // A [ BI-1-B, C ] D || 20cm
Back Slider: [ S, L, T ]
Back: Equivalents
Archive - Scans provided by Cassou Olivier Collection, France


P234 Dietzgen 1765F c1925
(Unis)
Dietzgen 1765F c1925 (Unis)
Made in France by Unis MARC for Eugene Dietzgen
Same as Guedon - See Misc USA
Front Scale
5in // A [ B, C ] D
Back Scale: 13cm [ Blank ]

From Catalog page in 1925 Manual


P223 Dietzgen 1765W Handy
Dietzgen 1765W Handy
Made in USA
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back/Well: Conversion Chart


P256 Dietzgen 1765W Handy
Dietzgen 1765W Handy
Made in USA - c1940
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back/Well: Conversion Chart


ISRM Dietzgen 1765P Basik
Dietzgen 1765P Basik
Made in Germany
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
[ S, ST, T ]
Back: Conversion Chart
Donated by David Hecht, Alexandria, VA


S296 Dietzgen 1765P Basik
Dietzgen 1765P Basik
Made in Germany
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
[ S, ST, T ]
Back: Conversion Chart


S110 Dietzgen 1766P
Dietzgen 1766P - Closed  Simplex -
Made in Germany - Ca 1933
Front Scale
A [ B, C ] D
Back Slider
[ S, L, T ] Back: Conversion Chart


S308 Dietzgen 1767P National - Early Cursor
Dietzgen 1767P National - Early Cursor
Made in USA
Front Scale
A [ B, CI, C ] D, K
Back Scale
10in [ S, L, T ] 25cm, Conversion Chart (label)


S394 Dietzgen 1767P National
Dietzgen 1767P National - c1942
Made in USA - Same as Post 1446-D
Front Scale
A [ B, CI, C ] D, K
Back Scale: [ S, L, T ]
Back: Early Conversion Chart (label)


S001 Dietzgen 1767P
National
Dietzgen 1767P  National 
Made in USA, possibly by Charvoz-Roos or Festus
Front Scale
A [ B, CI, C ] D, K
Back Slider
[ S, L, T ] Back: Conversion Chart


258 Dietzgen 1767 National
Dietzgen 1767 National - c1966
Made in USA - National
Front Scale
K, S, A [ B, CI, C ] D, T, L
Back Blank
Orig Owner: Carol Tideman
Last owner: Patricia Turner, Boulder, CO


ISRM Dietzgen 1767 National
Dietzgen 1767 National - c1966
Made in USA -
Front Scale
K, S, A [ B, CI, C ] D, T, L
Back Blank
Donated by David Sweetman



S371 Dietzgen 1768P Reliance
Dietzgen 1768P Reliance - Closed Simplex
Made in USA c.1940
Front Scale
A [ B, CI, C ] D, K
Back Scale
10inch [ S, L, T ] 25cm
Back: Equivalents


S402 Dietzgen 1768-P
Dietzgen 1768-P - Open Simplex
Made in Japan (by Fuji?) for Dietzgen, c1970
Front Scale
K, S, A [ B, CI, C ] D, T, L
Back: Blank
Purchased out of Lima., Peru
Note: braces on back side of stators.


S493 Dietzgen 1768-P Maniphase
Dietzgen 1768-P Maniphase -Open Simplex
Made in Japan (by Fuji?) for Dietzgen, c1970
Front Scale
K, S, A [ B, CI, C ] D, T, L
Back: Blank
In Unopened Retail Bag, Note braces on scale side of stators.



S501 Dietzgen 1769
Dietzgen 1769 - pre WWIII
Made in USA
Front Scale
10inch // A [ B, C ] D, K || 25cm
Back Scale
[ S, L, T ] Back: Equivalents



S257 Dietzgen 1769P Federal
Dietzgen 1769P Federal - cWWII
Made in USA
Front Scale
10inch || A [ B, CI, C ] D, K || 25cm
Back Scale
[ S, L, T ] Back: Equivalents
Original Owner: Unk


P058_Dietzgen [Redi-rule]
Dietzgen [Redi-rule] - Simplex
Made in USA
Front Scale
K, A [ B, CI, C ] D
Back slider: [S, ST, T ]
Back 5in, 12.5mm


P197 Dietzgen [Redi-rule]
Dietzgen [Redi-rule] - Simplex
Made in USA
Front Scale
5in // K, A [ B, CI, C ] D \\ 12.5cm
Back Scale: [S, L, T ]
Back: Blank


P172 Dietzgen [Redi-rule - no markings]
Dietzgen [Redi-rule] - Simplex
Made in USA
Front Scale
5in // K, A [ B, CI, C ] D \\ 12.5cm
Back Scale: [S, L, T ]


P043 Dietzgen 1771 redirule
Dietzgen 1771 - 5" Redirule
Made in USA - 9 scales
Front Scale
A [ B, CI, C ] D, K
Rear Slider: [S, L, T
Back Adv: A.E. Stanely Mfg. Co
Original Owner (on case): Init=OVD, date 12-25-54


ISRM Dietzgen 1772A
Dietzgen 1772 A
Made in USA by Acu-Rule/Sterling- 10 scales
Front Scale: K, A [ B, CI, C ] D, L
Back: Blank
Original Owner: H.W.F. (Initials on sleeve)
Donated by David Hecht, Alexandria, VA.


REF Dietzgen 1772B Union Slide Rule - Mannheim
Dietzgen 1772B Union Slide Rule - Mannheim
Made in USA - c1930
Front Scale: A [ B, C ] D
Rear Scale: [ S, L, T ]
Archive - Contributed by Jan Pratt


P200 Dietzgen 1773 System Darmstadt
Dietzgen 1773 System Darmstadt- Date code 1258
Made in Germany for Dietzgen by Faber-Castell - 14 scales
Same as Faber-Castell 67/54 B Darmstadt
Front Scale (extended)
5in // L, K, A [ B, CI, C ] D, P, S, T
Back Scale 14cm [ LL1, LL2, LL3 ]


P221 Dietzgen 1774-M Maniphase
Dietzgen 1774-M Maniphase - post WWII
Made in Germany (U.S. Zone) for Dietzgen by Ecobra - all Aluminum
Front Scale (extended)
5in // K, A [ B, CI, C ] D, L
Back Scale: [ S, T ]




P042 Dietzgen 1776 redirule
Dietzgen 1776 - 5" Redirule
Made in USA - 15 scales
Front Scale
K, A [ B, T, ST, S ] D, DI
Rear Scale
DF [ CF, CIF, CI, C ] D, L


P023 Dietzgen 1776 redirule
Dietzgen 1776 - 5" Redirule
Made in USA - 15 scales - Complete in Box
Front Scale
K, A [ B, T, ST, S ] D, DI
Rear Scale
DF [ CF, CIF, CI, C ] D, L
ADV: Texas-U.S. Chemical Co.


DH090 Dietzgen 1776 redirule
Dietzgen 1776 - 5" Redirule
Made in USA - 15 scales
Front Scale
K, A [ B, T, ST, S ] D, DI
Rear Scale
DF [ CF, CIF, CI, C ] D, L
ADV: Electronic Specialty Co.
Donated by David Hecht, Alexandria, VA


REF Dietzgen 1777 (ECOBRA)
Dietzgen 1777
Made in Germany, U.S. Zone - All Metal
Front Scale
K, A [ B, R, C ] D, L(Lg)
Rear Scale
12cm [ Sin, Tg ] 5in
Scan donated by Olivier Cassou, France


P040 Dietzgen 1778 Pocket MultiLog
Dietzgen 1778 - Pocket MultiLog
Made in Germany - 24 scales
Front Scale
L, Ti, T2 A [ B, BI, CI, C ] D, ST, S Cos, P
Rear Scale
LL03, LL02, LL01, K [ K', C, CIF, CF ] DF, LL1, LL2, LL3
Cursor: Multi-lined
Markings: K.A.Sandahl


P040 Dietzgen 1779 Pocket Log
Dietzgen 1779 - Pocket Log
Made in Germany U.S. Zone - 17 scales - In Box
Front Scale
K, A [ B, Lg, C ] LL3, LL2, LL1
Rear Scale
Sin Cos, Tg Ctg, DF [ CF, CI, C ] D, P
Cursor: Multi-lined, D, Q, W, HP


REF - Dietzgen 1797A (Gilson Atlas) Type-3 21.1cm dia
Dietzgen 1797A (Gilson Atlas) Type-3 21.1cm dia.
Made in USA by Gilson
Front Scales
C, S-Log, C (25 spirals), C-Log, Coils, Constants
Back Scales
Degrees, S, T, Degrees, S, T, Degrees, S, T, Fractions
Archive - No longer in collection
4.08MB


C21 Dietzgen 1797B (Gilson Binary) 21.1cm dia
Dietzgen 1797B (Gilson Binary) 21.1cm dia.
Made in USA by Gilson for Dietzgen
Front Scales
C,CI,A,K,Log,LL1,LL2,LL3,LL4,Binary, Fraction,Drill,Thread, Millimeter
Back Scales
Degrees, S, T, Degrees, S, T, Degrees, S, T, Fractions
Original owner: Clarence Jackson Davis 1932-2004, Winchester, TN - Geologist, VP Marfac, Inc, Korean War Veteran - 2 Purple Hearts



REF - Dietzgen 1798 - Dempster RotaRule - model AA
Dietzgen 1798 - Dempster RotaRule - Model AA (1933-1948)
Made in USA - Designed and manufactured by Jack Dempster, Berkeley, California.
Front Scales: K A D ( C CI CIF S CS ST T CT G B F/i )
Back Scales: 1-100 in 4circles DLL V2 ( V1 1-100 in 4circles LL3 LL2 LL1 LL% L )
Archive - Hermann's SR Catalog
Model 1798 shown in 1938 Dietzgen Catalog (in ISRM Library)


C03 Dietzgen 1797M (Gilson Midget 1931, 1936)
Dietzgen 1797M (Gilson Midget 1931, 1936)- 10.2cm dia
Made in USA for Dietzgen by Gilson Slide Rule Co., Stuart, Florida
Front Scales
C,CI,A,K,Log,LL1,LL2,LL3,LL4,
Back Scales
Binary, Fraction,Drill,Thread, Millimeter



C03 Dietzgen 1797M (Gilson Midget)
Dietzgen 1797M (Gilson Midget)- 10.2cm dia
Made in USA for Dietzgen by Gilson Slide Rule Co., Stuart, Florida
Note: Copyright date removed from the previous artwork (circa 1960-70)
Front Scales
C,CI,A,K,Log,LL1,LL2,LL3,LL4,
Back Scales
Binary, Fraction,Drill,Thread, Millimeter
Donated in 2008 by Bruce Chelf of Porter, Indiana

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