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Details and Image
Item#
Type
Model No.
Model Name
Maker
Country
Material
Diameter
Date
Condition
MEC004
Pocket
"2-1/2"
The Mechanical Engineer Pocket Calculator
Scientific Publishing Co..
UK
Nickel-plated brass
"3"
c. 1900-1907
C5
Notes:
"Large version of the calculator with 2-1/2"" scale disc. This specimen has no inscription on it. Cursor works fine, but disk only rotates if case is loosened. "
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Condition Code
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