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Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Circular and Spiral Slide Rules
PICKETT / 104-C Profit Calculator
PICKETT & ECKEL
Mexico
Plastic
1970s
Ø 20.3 cm
Business
Notes:
"Despite the model name it can be used for general calculations alongside calculating profit margins, profit mark-up, etc. "
Image 1
Image 2
Image 3
