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Details and Image
Item#
Type
Model
Type No.
Version No.
Maker
Country
Material
Scale Length
Date
Condition
LAW013
Linear
"Lawrence ""Code-Maker"
Lawrence
USA
Boxwood w/printed scales
"8"
1939
C3
Notes:
Slide rule designed for use by children for use in coding and decoding text messages using a fairly simple Vigenère cipher.
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Condition Code
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