A rare variety with a doubling of the designer's monogram, as well as the entire reverse. A variety not described in Janusz Parchimowicz's latest album publication 2022. One listing of this variety is WDA-MiM 19/846 - 748zl
https://wda.onebid.pl/pl/monety-rr-100-zlotych-1988-jadwiga-destrukt-double-die-podwojny-monogram-projektanta/868328 In the coin collections of the last century, struck by machine in large numbers, it is not the quantity 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).