Duplicate 1964 Poland 10 Zlotys Pattern [solved]

Keep N#83062

Delete https://en.numista.com/catalogue/pieces142863.html

Maybe swap pictures.

According to the coin name (close and closer) they make a distinction for the placement of the “Proba”:

Numista does make that distinction but they are both incused so probably hand stamped and a very slight difference in location shouldn't be considered a different variety.  SCWC has 6 types of this pattern, KM# Pr98 to KM# Pr103, none have a Proba location notation.  Numista is missing KM# Pr98 which, according to SCWC has composition Copper-Nickel-Zinc and Proba raised so that can't be N#142863 .  That means if it is not a duplicate then there are 7 types which I don't think is true.  Also, SCWC has a mintage of 30,000 for N#83062 (which includes mintage for KM# Pr100) and no mintage higher than 500 for the others. A mintage of 29,000 implies it's the same pattern.  I still believe they are duplicates and would like the referee or somebody else to confirm with the other two catalog references.

I merged these, I deemed it highly unlikely to be another type.