Lot · Medicine & First Aid
1964 PERRYGRAF Corporation Robins Slide-Chart Price Calculator Round Cardboard
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Fri · Jul 17, 2026
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Condition
Used
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New
Used
Refurbished
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Unspecified
Ships from
ZIP 640**
*goodstuff18*
127 ratings · 96.90% positive
Description
From the sellerThis is a vintage 6" round slide-chart Robins price calculator manufactured by PERRYGRAF Corporation in Maywood, Illinois in 1964. It measures everything from grains/milligrams, ounces/grams, grains/grams to fluid ounces/C.C. You can use this to calculate the profit on selling price, the selling price of each item, and and the cost markup from 1 item to 50 items. The instructions for using it are printed on the front, and there is a conversion chart on its reverse side.
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