Object Details
maker
Computer Manufacturing Company
Description
This deteriorating 16-page booklet was received with 1996.3077.01. It was copyrighted in 1919, but the address "340 Sansome St." is handwritten on page 3. Since the Computer Manufacturing Company of San Francisco did not move to this location until 1921, the instrument and manual were probably sent out in 1921 or later.
The manual contains general instructions, instructions for using the dial alone, instructions for separately using the linear slide rule attached to the instrument, hints for speed and accuracy, fundamental examples, technical details for calculating with logarithms and exponents, and practical applications from payroll to cube roots. Stamped on pages 8–9 is the text: ANOTHER HINT FOR SPEED (/) In locating answer coil, when a (/) check is desired, set slide ROUGHLY. Pages 9–16 are accessed by folding out the pages from the binding.
Location
Currently not on view
Credit Line
Gift of B.K. Lunde, in memory of Roy Kegerreis
date made
1919
ID Number
1996.3077.02
nonaccession number
1996.3077
catalog number
1996.3077.02
Object Name
leaflet
Physical Description
paper (overall material)
Measurements
overall: .2 cm x 12.5 cm x 20 cm; 3/32 in x 4 29/32 in x 7 7/8 in
place made
United States: California, San Francisco
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Slide Rules
Data Source
National Museum of American History
Subject
Mathematics
Rule, Calculating
Link to Original Record
Record ID
nmah_690757