1000 Zlotys Environmental Protection - Swan, Trial Strike

Poland's Environmental Protection series, launched in the early 1980s, was produced during a period when the state mint was simultaneously navigating hard-currency shortages and growing collector export demand — coins like this were as much a foreign exchange instrument as a numismatic issue. Trial strikes (próby) from Mennica Polska in this era were produced in very limited numbers, often fewer than a hundred pieces, intended for internal approval or collector sets rather than circulation.

The .625 fineness is characteristic of Polish proof and trial issues of this decade, a deliberate step below sterling that kept silver costs manageable under state budget constraints.