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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
J.L. Hewitt Coil Spring Slide Rule
J.L. Hewitt
United Kingdom
Plastic
© 1948
91 cm
Spring Design
Notes:
"This rule is huge and well-made, but I know little about it."
Image 1
Image 2
Image 3
Image 4
