This is a U.S. $1 feeder finger which was used for striking silver dollar sized coins at the Denver Mint. The feeder finger is one of a small group that came out of the U.S. Mint, and were struck at the Moonlight Mint using the original Grabener coin press that the feeder fingers would have been used on.
The silver dollar size feeder fingers are the most available, although also the most attractive being the largest. The press was in operation from 1986-2001 at the Denver Mint, which means the silver dollar sized feeder fingers would have been intended for use for U.S. silver dollar commemorative coins.
There are 90 of the "dollar size" known, making it the most common of the feeder finger types, although still a low population.
Until these came out, feeder fingers were nearly unheard of on the coin market. An opportunity to own a fascinating piece of Mint equipment, and something which has caused many error coins over the years!
The feeder finger is struck with "commemorative dies" used by the Moonlight Mint to commemorate the press.
Note: We have a small quantity, and the example shown is not necessarily the exact feeder finger you will receive, but one that looks more or less identical.