Poland OS #47 MNH SHEET World Stamp EXPO Poznan 1973 $$
Poland Scott #4369 MNH S/S Polish Postal Service PHILATELY CV$5+ 434823
Poland Scott #B143 Used S/S Botticelli Painting ITALIA '85 Stamp EXPO $$
Poland Scott #CB1 COVER Warsaw Philatelic EXPO 1957 $$