SLIDE RULE
CATALOGUE “ L I T E “
|
NAME |
MATCH |
DESCRIPTION
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Keuffel & Esser
< 4053 - 3F > dated 1913 |
Generic slide rule of engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4031 > Mannheim
Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4031 > Mannheim
Adjustable dated 1903, 1906, 1909 and 1913 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4031 > Mannheim
Adjustable, dated 1900 and 1901 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser < 4031 > Mannheim
Adjustable, dated 1914 |
Generic slide rule of engine divided celluloid
laminated mahogany |
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Keuffel & Esser < 4031 > Mannheim
Adjustable, dated 1915 (other example) |
Generic slide rule |
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Keuffel & Esser < 4031 > Mannheim
Adjustable, dated 1915 (other example) |
Generic slide rule |
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Keuffel & Esser < 4031 > Mannheim
Adjustable, dated 1925 (other example) |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4031 > S Mannheim
Adjustable, dated 1922 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser < 4031 > S Mannheim
Adjustable, dated 1922 (other example) |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4031 > S Mannheim
Adjustable, dated 1925 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser < 4031 > S Mannheim
Adjustable, dated 1925 (other example) |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4035 > Mannheim
Adjustable dated 1906 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser < 4035 > Mannheim
Adjustable dated 1915 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser < 4035 > Mannheim
Adjustable, dated 1914 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser < 4041 > Mannheim, dated 1908 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser < 4041 > Mannheim, dated 1909 |
Generic slide rule of engine divided celluloid laminated
mahogany |
|
|
Keuffel
& Esser < 4041 > Mannheim, dated 1921 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4041 > Mannheim, dated
1921 and 1922 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser < 4041 F > Mannheim, dated 1915 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4045 > Mannheim
Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany, 420x36x13 mm
(1915, 1921, 1922, 1925, 1927, 1930) |
|
|
Keuffel & Esser < 4053 - 2 > Polyphase
Mannheim Adjustable, dated 1915 and 1921 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser < 4053 - 2 > Polyphase
Mannheim Adjustable, dated 1914 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4053 - 2 > Polyphase
Mannheim Adjustable, dated 1915 (other example) |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4053 - 2 > Polyphase
Mannheim Adjustable, dated 1915 (other example) |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4053 - 3 > Polyphase
Mannheim Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany, 270x34.5x10 mm
(1913) |
|
|
Keuffel & Esser < 4053 - 3 > Polyphase
Mannheim Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4053 - 3 > Polyphase
Mannheim Adjustable |
Generic slide rule of engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4053 - 3F > Poly Keuffel
& Esser 4053- 2S Mannheim Adjustable dated 1913 (other example) Magnifier |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4053 - 3F > Poly
Mannheim Adjustable dated 1913 (other example). Magnifier |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser < 4053 - 3F > Polyphase
Mannheim (other example) Adjustable Magnifier |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4053 - 5 > Polyphase Mannheim
Adjustable Dated 1914 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4053 > Polyphase Slide
Rule, Mannheim Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4054 > Favorite
(Mannheim) adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany, 270x2910.5 mm (1906,
1909, 1913, 1915, 1921, 1922, 1925) |
|
|
Keuffel & Esser < 4054 > Polyphase
(Mannheim) |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4055
> Favorite Adjustable (Mannheim) |
Generic slide rule of Engine divided celluloid
laminated mahogany, 271x285x105 mm
(1936, 1937, 1939, 1943) |
|
|
Keuffel & Esser < 4070 - 3 > Polyphase
Duplex Trig |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4071 - 3 > Polyphase
Duplex Decitrig |
Generic slide rule of Engine divided celluloid
laminated mahogany, 310x33x6 mm
(1939, 1943, 1944, 1947, 1949, 1954, 1955) |
|
|
Keuffel & Esser < 4071
> Duplex |
Generic slide rule of Engine divided celluloid
laminated mahogany, 308x27x6.7 mm
(1915) |
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|
Keuffel & Esser < 4071 T > Duplex, with Trig
Scale, L scale on back, not on edge, dated 1915 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4071 T > Duplex, with
Trig Scales, dated 1909 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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|
Keuffel & Esser < 4080 - 3 > Log Log
Duplex Trig |
Generic slide rule of Engine divided celluloid
laminated mahogany, 318x40.5x6.5 mm (1939,
1943, 1944, 1947) |
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|
Keuffel & Esser < 4080 - 3 > Log Log
Duplex Trig |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4080 - 3 > Log Log
Duplex Trig. Replaced 4090-3 |
Generic slide rule of Engine divided celluloid
laminated mahogany, 318x40.5x6.5 mm
(1937) |
|
|
Keuffel
& Esser < 4080 - 3 > S Log Log Duplex Trig |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4080 - 5 > Log Log
Duplex Trig |
Generic slide rule, 565x40.6x8 mm (1939, 1943, 1944, 1947) |
|
|
Keuffel
& Esser < 4080 - 5 > S Log Log Duplex Trig |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4081 - 3 > Log Log
Duplex Decitrig |
Generic slide rule of Engine divided celluloid
laminated mahogany, 318x41x6.5 mm
(1939, 1943, 1944, 1947) |
|
|
Keuffel & Esser < 4081 - 5 > Log Log
Duplex Decitrig, |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser < 4081 - 5 > S Log Log Duplex Decitrig |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4082 - 3 > |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4087
> Duplex |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4088 -
3 > Polyphase Duplex |
Generic slide rule of Engine divided celluloid laminated
mahogany, 308x30.4x6.6 mm (1915,
1921) |
|
|
Keuffel & Esser < 4088 - 3 > Polyphase
Duplex, dated 1913 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4091 - 3 > Log Log
Decitrig. Replaced by 408 - 3 |
Generic slide rule of Engine divided celluloid
laminated mahogany, 308x30.4x6.6 mm
(1936, 1937P-d) |
|
|
Keuffel & Esser < 4092 - 3 > Log Log
Duplex |
Generic slide rule of Engine divided celluloid
laminated mahogany, 318x41x65 mm
(1922) |
|
|
Keuffel & Esser < 4097 C
> |
Generic slide rule |
|
|
Keuffel & Esser < 4097 C > Ever - There, (Old
4098) |
Generic slide rule of Engine Divided White Xylonite,
153x33x3.5 mm (1936, 1937, 1939,
1943, 1944, 1947, 1949) |
|
|
Keuffel & Esser < 4097 C > Ever - There,
1936 (Old 4098) |
Generic slide rule of Engine Divided White Xylonite,
153x33x3.5 mm (1936, 1937, 1939,
1942, 1943, 1944, 1947, 1949, 1952) |
|
|
Keuffel & Esser < 4100 > |
Generic slide rule |
|
|
Keuffel & Esser < 4100 > S Stadia |
Generic slide rule of Engine divided celluloid
laminated mahogany, 260x25x10 mm
(1922) |
|
|
Keuffel & Esser < 4101
> Stadia |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4110 > Special Rule made
for Annapolis |
Generic slide rule of Engine divided celluloid
laminated mahogany, [from Clark mccoy
- built on the N4096 desktop rule frame, using the N4096 improved indicator],
260x25x10 mm (1942 - JOS, Mar. 1993) |
|
|
Keuffel & Esser < 4138 > Morrison Radio
Engineer's Slide Rule |
Log/tech slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < 4139 > Cooke Radio Slide
Rule |
Generic slide rule of Engine divided celluloid
laminated mahogany, 310x33x6.5 mm (1943, 1944, 1947, 1949, 1954, 1955) |
|
|
Keuffel & Esser < 4165 > of Match no. 4460 |
Generic slide rule |
|
|
Keuffel & Esser < 4175 > Kurtz
Psychrometric |
Technical slide rule of wood/celluloid, 300x40x10
mm (1936, 1937, 1939) |
|
|
Keuffel & Esser < 9071 -
3 > Doric |
Generic slide rule of Engine Divided White Xylonite |
|
|
Keuffel & Esser < N 4041 > dated 1925
(other example) |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < N 4041 > Mannheim Adjustable,
dated 1936 thru 1943 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < N 4053
- 3 > |
Generic slide rule of wood/celluloid |
|
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Keuffel & Esser < N 4053
- 3 > |
Generic slide rule |
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|
Keuffel & Esser < N 4053 - 3 > Polyphase
Mannheim Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < N 4053 - 3 > Polyphase
Mannheim Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany, 270x35x10 mm
(1936, 1937, 1939, 1943, 1944, 1947, 1949) |
|
|
Keuffel & Esser < N 4053 - 3 > S Polyphase
Mannheim Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < N 4053 - 3F > S
Polyphase Mannheim Adjustable |
Generic disc of Engine divided celluloid laminated
mahogany |
|
|
Keuffel & Esser < N 4053- 2 > Mannheim
Adjustable, dated 1924 (other example) |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser < N 4096 > Desk Slide
Rule, (same as other N 4096, but without stand, knob, or special case) |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser <4071 - 3> Polyphase
Duplex Decitrig |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser <4071 - 3> Polyphase
Duplex Decitrig |
Slide rule of engine divided celluloid laminated
mahogany, with exposed mahogany strips on edge |
|
|
Keuffel & Esser <4071 T> Duplex with Trig
scales, L scale on back, not on edge, dated 1913 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser <4090 - 3> S Log Log Trig.
Replaced by 4080 - 3S |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 10002 Doric with trigonometrical
scales divided to represent degrees and minutes |
Slide rule of plastic |
|
|
Keuffel & Esser 1742 - 4 Crane's Sewer Slide
Rule |
Log/tech slide rule |
|
|
Keuffel & Esser 1743 Charpentier Calculator,
dated 1895 |
Disc of metal |
|
|
Keuffel & Esser 1744 1/2
Duplex, dated 1899 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 1744 Duplex with arithmetical
slide, dated 1895, Cox's Patent |
Generic slide rule of engine divided celluloid
laminated wood |
|
|
Keuffel & Esser 1749 - 4 Crane's Sewer Slide
Rule |
Slide rule |
|
|
Keuffel & Esser 1749 Stadia |
Slide rule of engine divided celluloid laminated
mahogany |
|
|
Keuffel & Esser 4012 Thacher cylinder |
Generic cylinder |
|
|
Keuffel & Esser 4012 Thacher cylinder (other
example, dated 1910) |
Generic cylinder |
|
|
Keuffel & Esser 4017 Sperry, watch style Pat
Oct. 25 1904 |
Generic watch type of metal/glass |
|
|
Keuffel & Esser 4017 Sperry's Calculator Pat.
Dec. 26. 1911 |
Generic watch type of metal/glass |
|
|
Keuffel & Esser 4020 Charpentier Calculator,
dated 1906 |
Disc of metal |
|
|
Keuffel
& Esser 4040 Mannheim dated 1901 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4041 (No number on rule) dated
pre 1909 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4041 dated
1906 |
Generic slide rule |
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|
Keuffel & Esser 4041 dated 1906 (other example) |
Generic slide rule |
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Keuffel & Esser 4041 dated 1906 (other example) |
Generic slide rule |
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|
Keuffel & Esser 4041 dated
1922 |
Generic slide rule |
|
|
Keuffel
& Esser 4041 F Mannheim, dated 1906 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser 4041 Mannheim, dated 1903 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser 4041 Mannheim, dated 1906 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4041 Mannheim, dated 1906 (other
example) |
Generic slide rule of Engine divided celluloid
laminated mahogany, 270x31x10 mm
(1906) |
|
|
Keuffel
& Esser 4041 Mannheim, dated 1909 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser 4041 Mannheim, dated 1915 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser 4041 Mannheim, dated 1922 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4053 - 3 Polyphase Mannheim
Adjustable |
Generic slide rule of Engine divided celluloid laminated
mahogany, with molded plastic back, 278x35x8 mm (1956) |
|
|
Keuffel & Esser 4053 - 3S Polyphase Mannheim
Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany, with molded plastic back |
|
|
Keuffel & Esser 4053 - 3S Polyphase Mannheim
Adjustable, |
Generic slide rule of Engine divided celluloid laminated
mahogany, with molded plastic back |
|
|
Keuffel & Esser 4058 |
Generic slide rule |
|
|
Keuffel & Esser 4058 Student's Slide Rule,
printed on light-colored wood, with steel spring |
Generic slide ruleslide rule of Light colored wood,
270x29x9 mm (1915, 1921, 1922) |
|
|
Keuffel & Esser 4058 W Beginners' Slide Rule |
Student slide rule of Light colored wood, 270x28.5x9
mm (1942,1943) |
|
|
Keuffel & Esser 4060 Cox's
Patent |
Generic slide rule |
|
|
Keuffel & Esser 4060 Cox's Patent |
Generic slide rule |
|
|
Keuffel & Esser 4065 T
Duplex Trig |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4070 |
Generic slide rule |
|
|
Keuffel & Esser 4070 Duplex |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4070 Duplex |
Generic slide rule |
|
|
Keuffel & Esser 4076
Duplex, Interchangeable Slides |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4081 - 3 Log Log Duplex Decitrig |
Generic slide rule of Engine divided celluloid
laminated mahogany, 318x41x6.5 mm
(1953, 1954, 1955) |
|
|
Keuffel
& Esser 4081 - 3S Log Log Duplex Decitrig |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel
& Esser 4081 - 3S Log Log Duplex Decitrig |
Generic slide rule of Engine divided celluloid laminated
mahogany, with exposed mahogany edges |
|
|
Keuffel & Esser 4083 - 3 Log Log Duplex Vector |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4083 - 3 Log Log Duplex Vector
(Also no. 68 - 1434) |
Generic slide rule of Engine divided celluloid
laminated mahogany, with exposed mahogany edges |
|
|
Keuffel & Esser 4087 Duplex |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4090 Original prototype for 4090
Universal rule |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4090 Original prototype for 4090
Universal rule, dated 1899 |
Generic slide rule of engine divided hard wood |
|
|
Keuffel & Esser 4090 Universal, 2 attached
slides, dated 1901, 1903 |
Generic slide rule of engine divided celluloid laminated
mahogany |
|
|
Keuffel & Esser 4095 - 3
Merchants' Adjustable Duplex |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4095 Triangular Metal |
Generic slide rule of metal |
|
|
Keuffel & Esser 4098 A Pocket Slide Rule |
Generic slide rule of Engine Divided White Xylonite,
153x33x3.5 mm (1936, 1937, 1939,
1943, 1944, 1947, 1949) |
|
|
Keuffel & Esser 4100 Stadia |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 4108 Military Slide Rule |
Military slide rule of Engine divided celluloid
laminated mahogany, 285x40.9x10.3 mm
(1960) |
|
|
Keuffel & Esser 4128 Nordell Sewer Slide Rule,
Duplex Type |
Log/tech slide rule |
|
|
Keuffel & Esser 4141 Hudson's Horsepower
Computing Scale |
Technical slide rule of boxwood |
|
|
Keuffel & Esser 4143 Kissam Stadia (Also no. 68
1486) |
Log/tech slide rule |
|
|
Keuffel & Esser 4150 - 1 Pocket Slide Rule |
Generic slide rule of Ivorite Precison Molded ABS |
|
|
Keuffel & Esser 4165 Urea Index Rule |
Medical slide rule |
|
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Keuffel & Esser 4168 Doric Pocket Slide Rule |
Generic slide rule of Ivorite Precison Molded ABS,
170x28.5x3.5 mm (1954, 1955) |
|
|
Keuffel & Esser 4181 - 1 Pocket Slide Rule (B1.
and A2.) |
Generic slide rule of Ivorite Precison Molded ABS,
177x38x4 mm (1954, 1955) |
|
|
Keuffel & Esser 4181 - 3 Log Log Duplex Decitrig |
Generic slide rule of Ivorite Precison Molded ABS,
317x41x4.5 mm (1954, 1955) |
|
|
Keuffel & Esser 4yyy |
Generic slide rule, 1023x38 mm |
|
|
Keuffel & Esser 68 - 1100
Deci-Lon 10 Instruction model |
Generic slide rule of Ivorite Precison Molded ABS,
323x49x4.5 mm (1962, 1967) |
|
|
Keuffel & Esser 68 - 1130
Deci-Lon 5 |
Generic slide rule of Ivorite Precison Molded ABS,
182x49.5x3.8 mm (1962, 1964, 1967,
1972) |
|
|
Keuffel & Esser 68 - 1210 Decitrig, with sewed
leather, chamois lined case, with belt carrier |
Generic slide rule of Engine divided celluloid
laminated mahogany, 318x415x7 mm
(1962, 1967, 1972) |
|
|
Keuffel & Esser 68 - 1251
Jet-Log (A. and B.) |
Generic slide rule of Ivorite Precison Molded ABS |
|
|
Keuffel & Esser 68 - 1256
Jet-Log (A. and B.) |
Generic slide rule of Ivorite Precison Molded ABS |
|
|
Keuffel & Esser 68 - 1318 Log Log Duplex Trig |
Generic slide rule of Engine divided celluloid
laminated mahogany, 319x415x7 mm
(1962, 1967) |
|
|
Keuffel & Esser 68 - 1434 Log Log Duplex Vector |
Generic slide rule of Engine divided celluloid
laminated mahogany, 313x41x7 mm
(1962, 1967) |
|
|
Keuffel & Esser 68 - 1565
GP-12 |
Generic slide rule of Ivorite Precison Molded ABS,
317x45.5x4.5 mm (pat. 1964, 1966,
1967, 1972) |
|
|
Keuffel & Esser 68 - 1617
Polyphase |
Generic slide rule of Engine divided celluloid
laminated mahogany, 277x36x8 mm
(1962, 1967) |
|
|
Keuffel & Esser 68 - 1775
Merchants' |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser 68 - 1892 K-12 Prep |
Generic slide rule of Vinylite laminations, Heat
stamped, 311.5x41.5x3.2 mm (1966,
1972) |
|
|
Keuffel & Esser 68 1400 Analon
(B..) |
Generic slide rule of Ivorite Precison Molded ABS,
317x45.5x4.5 mm (1967) |
|
|
Keuffel & Esser American 1 |
Generic slide rule of wood/plastic |
|
|
Keuffel & Esser American Mannheim |
Generic slide rule of engine divided celluloid
laminated blond hardwood, with printed inch and cm rules. |
|
|
Keuffel & Esser Brick-O-Meter |
Log/tech slide rule |
|
|
Keuffel & Esser
Construction |
Log/tech slide rule |
|
|
Keuffel & Esser Deci - Lon
Instruction Rule |
Slide rule |
|
|
Keuffel & Esser Military (Picture page 2, case) |
Slide rule |
|
|
Keuffel & Esser Mystery rule |
Generic slide rule |
|
|
Keuffel & Esser N < 4041 > dated 1909
(needs checking) |
Generic slide rule |
|
|
Keuffel & Esser N < 4041 > Mannheim
Adjustable |
Generic slide rule of Engine divided celluloid
laminated mahogany, 270x34.5x4.5 mm
(1925, 1927, 1930) |
|
|
Keuffel
& Esser N < 4041 > Mannheim, dated 1924 |
Slide rule of Engine divided celluloid laminated
mahogany |
|
|
Keuffel & Esser N < 4053 - 2 > S Polyphase
Mannheim Adjustable, dated 1925 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser N < 4053 - 3F > Mannheim
Adjustable dated 1923 |
Generic slide rule of engine divided celluloid
laminated mahogany |
|
|
Keuffel & Esser N < 4053 - 3F > Polyphase
Mannheim Adjustable, dated 1925, 1927, 1928, 1930 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
|
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Keuffel & Esser N < 4053 - 5 > Polyphase
Mannheim Adjustable Dated 1923 |
Generic slide rule of engine divided celluloid
laminated mahogany |
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Keuffel & Esser N < 4053 - 5 > Polyphase Mannheim
Adjustable Dated 1923 |
Generic slide rule |
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Keuffel & Esser N < 4053- 2 > Mannheim
Adjustable, dated 1924 |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser N < 4053- 2 > Mannheim
Adjustable, dated 1924 (other example) |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser N < 4100
> Stadia |
Slide rule of Engine divided celluloid laminated
mahogany |
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Keuffel & Esser N < 4102 > Surveyor's
Duplex |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser N < 4123
> Roylance |
Generic slide rule of engine divided celluloid
laminated mahogany |
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Keuffel & Esser N < 4133 > S Roylance
Electrical, CI scale added |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser N 4012 Thacher's Calculating
Instrument |
Generic cylinder of wood/plastic |
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Keuffel & Esser N 4053 - 3 |
Generic slide rule |
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Keuffel & Esser N 4053 - 5 Polyphase Mannheim
Adjustable, with molded plastic back |
Generic slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel
& Esser N 4081 - 3 Log Log Decitrig Duplex |
Generic slide rule of Engine divided celluloid
laminated mahogany, 317x41x6 mm
(1949) |
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Keuffel & Esser N 4092 - 3 Log Log Duplex |
Slide rule of Engine divided celluloid laminated
mahogany |
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Keuffel & Esser N 9081 - 3 Doric Plastic Slide
Rule, decitrig scales, all black markings. replaced by N4181-3, 1952 |
Generic slide rule of Engine Divided White Xylonite,
317.5x41x4.6 mm (1949,1952) |
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Keuffel & Esser National Union Radio Tubes |
Electrical slide rule |
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Keuffel & Esser NoNumber |
Generic slide rule |
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Keuffel & Esser Percent of accuracy of estimate |
Log/tech slide rule |
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Keuffel & Esser Polyphase Mannheim Adjustable,
no model number shown, marked only "K+E" |
Generic slide rule of Engine divided celluloid
laminated mahogany, slide is 1/4 inch overlength on the right |
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Keuffel & Esser Reymond Leather Calculator |
Log/tech slide rule |
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Keuffel & Esser Syrup Rule |
Technical slide rule of plastic |
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Keuffel & Esser U.S. Militairy Short Base
Triangulation Model |
Military slide rule of Engine divided celluloid
laminated mahogany |
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Keuffel & Esser Unknown 4041 Mannheim, dated 1902 |
Generic slide rule of engine divided celluloid
laminated mahogany |
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Keuffel & Esser Unknown 4041 Mannheim, dated 1902 |
Generic slide rule of engine divided celluloid
laminated mahogany |
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Keuffel & Esser Unknown number Made by Tavernier
Gravet, dated 1883 |
Generic slide rule of polished boxwood |
