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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
KEU166
Linear
4058
4153
8
Student's
Keuffel & Esser
USA
n/a
Boxwood w/printed scales
"10"
1924
C3
Notes:
Conversion table on back of slide rule changed to reference equivalents and abbreviations from US Bureau of Standards Circular No. 47. Xylonite indicator.
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Condition Code
to obtain more details.