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


S473 Dietzgen 3746A - Patent June 28, 1898 		Dietzgen 3746A - Patent June 28, 1898
Made in USA - Additional 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 1725 Microglide Vector Log Log 		Dietzgen 1725 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


S319 Dietzgen 1732 Decimal Trig Log Log 		Dietzgen 1732 - Decimal Trig Log Log - s/n 522434
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


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
Help - Need one replacement lens


S401 Dietzgen N1733 Polymath Decimal Trig Log Log 		Dietzgen N1733 - Polymath Decimal Trig Log Log
Made in USA - 21 scales - S/N 011034 - 1962
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.


S277 Dietzgen 1734 Microglide Decimal Trig Log Log 		Dietzgen 1734 - Microglide Decimal Trig Log Log
Made in USA - 22 scales - S/N 058915 - 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


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 		Dietzgen 1738 Multilog Multiplex Style M
Made in Germany, 1954 - 22 scales Improved Dec Trig Log Log
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 1738 Multiphase Style-M 		Dietzgen 1738 Multiphase Style-M
Made in Germany, c1954 - 22 scales Improved Dec Trig Log Log
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


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


S115 Dietzgen Phillips 1740P 		Dietzgen 1740P - Closed Simplex
Made in Germany - (has a Hemmi cursor)
Front Scale
10inch // K, A [ B, R, C ] D || 25cm
Back Scale
[ S, L, T ] Back: Equivalents


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


S286 Dietzgen 1744 Polymath Multiplex Decimal Trig 		Dietzgen 1744 Polymath Multiplex Decimal Trig
Made in USA - 15 scales - S/N 092853
Front Scale
K, A [ B, T Cot, ST, S Cos ] D, DI
Rear Scale
DF [ CF, CIF, CI, C ] D, L


S341 Dietzgen 1744 Polymath Multiplex Decimal Trig 		Dietzgen 1744 Polymath Multiplex Decimal Trig
Made in USA - 15 scales - S/N 092061
Front Scale
K, A [ B, T Cot, ST, S Cos ] D, DI
Rear Scale
DF [ CF, CIF, CI, C ] D, L


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 - Recon. Cursor
The same slide rule as above with a reconditioned cursor, to replace the crumbling original. The early lens and metal lens brackets were retained, a SIC (Relay) cursor spacers were modified, drilled and tapped  eith 1-72 UNF threads, to accept new screws. This gives this 'old soldier' a new life.



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
1950 Catalog Description of 1751


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)


S112 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, ST, S
Rear Scale
Trig Identities [ Decimal to Fractions ] Equivalents


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
Original Owner: Unk


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.


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


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 by Lawrence Eng. Srv. c.1942 - See Lawrence 250-BT
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 and Lawrence 250-BT
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 Lawrence
Front Scale
A [ B, CI, C ] D, K
Back Slider
[ S, L, T ] Back: Conversion Chart


258 Dietzgen 1767 		Dietzgen 1767 - Plastic Open Simplex - 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


S111 Dietzgen 1767 		Dietzgen 1767 - Plastic Open Simplex - c1966
Made in USA - National
Front Scale
K, S, A [ B, CI, C ] D, T, L
Back Blank


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


REF Dietzgen 1772A 		Dietzgen 1772 A
Made in USA by Acu-Rule/Sterling(?)- 10 scales
Front Scale: K, A [ B, CI, C ] D, L
Rear Scale(Not verified): [ S, T ]
Archive - Found on eBay


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 Reiss - 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.


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


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
Copyright © 2003-2006 International Slide Rule Museum