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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
KEU650
Linear
4161-1
4451
n/a
Pocket Slide Rule
Keuffel & Esser
USA
44215
Ivorite Precision Molded ABS
"5"
1955
C2
Notes:
"Same as the 9061-1, but with model number change and stylized K&E logo replacing DORIC. Mandril number C1. on reverse of slide."
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Condition Code
to obtain more details.
