Dating vintage rocker balance coin scale?
Rescued this cute Fairbanks & Ewing brass coin scale at the flea market. 3 machined coin sizes of 24.2, 30.2 and 37.7 mm. Each position also has an anti-counterfeit thickness slot. Item marked "Approved By The US Mint" on counterweight and "Fairbanks & Ewing Phila" on coins side. No patent, no model #s. Lots of auction pics on an 1870's Fairbanks Infallible coin scale that has only 2 coin sizes but nothing on this one. Let me know what you know. 4 pics below. Thanks. Peace Roy
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