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AIChE slide rule pin
- American Institute of Chemical Engineers slide rule pin
- After 1900 – before 2004
Gold-plated pin for the American Institute of Chemical Engineers (AlChE). The pin is in the shape of a slide rule with the AIChE shield in the center and has a hinged clasp.
- Manufacturer L.G. Balfour Company
- Subject Brooches, American Institute of Chemical Engineers, Collectibles
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Pin From 8th International Congress of Applied Chemistry
- 1912-Sep
Bronze and lacquer pin with a blue satin ribbon. The body of the pin features an eagle holding a square shield painted to resemble the American flag. Ribbons with text surround the shield, and two circles showing each…
