Leaf switch assembly used in coin door coin detect and relay stack switches.
Reference:
SW-1M-5
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Coin switch trip bushing Williams

Coin switch trip weight Williams 02-2953

Coin trip wire used on early Williams coin doors for Susan B Anthony coins.

E-clip or e-ring commonly used on many 3/16" mechanism shafts
This is the 5 cent coin switch trip wire assembly used in 70's and 80's Wi...

Williams coin switch dime and quarter trip wire assembly

Coin trip switch assembly Williams EM

Coin trip assembly Quarters & Dimes

Switch assembly used in coin door & relay stack switches.