I just found out that because Poland was under the communist rule before 1993, that any Zloty from that time doesn't have the same value of the modern Zloty.
Anything before 1993 is communist money.
With that in mind, i have a 1983 1000 Zloty like the one here:
If anyone wants it, make me an offer.
A modern 1000 Zloty would be worth about $297.87 USD
I'd take far less.
If your in, or near Chicago, IL, there are 2 Travelex currency exchanges downtown;
19 S. La Salle St.
They'll exchange just about any modern currency, but I don't think they take coinage.