This is a rare Scott 1870 Polish Workers Party 30th Anniversary First Day Cover (FDC) from 1971-1980. The colorful stamp features the Workers Party emblem and is in superb grade condition, mint never hinged (MNH). The cancellation type is also a first day issue, adding even more value to this collectible item. This piece of history originates from Poland and is perfect for stamp collectors interested in European and Polish stamps. Please see the scan for more details.