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Details and Image
Item#
Type
Model No.
Match No.
Variant No.
Model Name
Maker
Country
Production or Serial No.
Material
Scale Length
Date
Condition
KEU531
Linear
n/a
4584
1
American
Keuffel & Esser
USA
33
Engine divided celluloid laminated boxwood
"10"
1900
C5
Notes:
Adjustable version of American slide rule with three adjustment screws on the upper rail. Inch scale numbers on sloped edge of rail above the indicator groove.
Click on the
Condition Code
to obtain more details.
