Mint Piece. Coin struck on an incorrectly cut disc by the die cutter. Unprecedented destruction on berry double gold coins. High rarity. In coin collections of the last century, struck by machine in large numbers, it is not the number of coins that indicates the quality of the collection, but the number of gems in it. There is no higher class of gems than low-volume SAMPLEs, and even rarer to them, created by accident, interesting minting errors (offsets, reverses).