R-, 200 Gold 1974, XXX YEARS OF PRL, reverse 180 degrees

A very rare coin, struck with a stamp reversed by 180 degrees. The eagle on the obverse in relation to the images on the reverse upside down - the so-called REVERSE. In collections of coins of the last century, struck by machine in large numbers, it is not the quantity of coins that proves the quality of the collection, but the number of gems in it, which include the curious minting errors (offsets, twists, reverses) created by accident.