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Vintage Large Classroom/Demonstration Slide Rule - $250 (NW Raleigh)
oneal rd near springwood dr
condition:
good
make / manufacturer:
Keuffel & Esser Co
model name / number:
4053-3
size / dimensions:
7' x 12"
QR Code Link to This Post
polyphase
Made in USA
SOME HISTORY: Keuffel and Esser
E demonstration slide rules, with Mannheim scales, date back as early as 1930, when they appeared in the 1933 K and;E catalogs as Model 100 and 101. (contributed by Clark McCoy). the slide rules were typically made of Redwood, which is lighter in weight than many other woods.
The 1936 catalog, although listing just the Model 100 and 101, has a note at the bottom of the page stating Demonstration slide rules, with the scales of the K&E Log Log Trig (equivalent to the 4080) and Log Log Decitrig Slide Rules (equivalent to the 4081), are also available.
The 1962 catalog, calls the 4053 Model 100 now as 69-1944, the 4081 Log Log Decitrig Slide Rules as 68-1923, and a new Demonstration Slide Rule for the Decilon 68-1100, called Model 68-1929 is now available.
cash only please