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O) 2008 ITALY, DISCHIA ISLAND, VIEW OF FORIO, LANDSCAPE, ARCHITECTURE,...
O) 2003 URUGUAY, PALACE OF THE GAUCHO AND THE CURRENCY, ARCHITECTURE,...
O) 1969 GREAT BRITAIN, CATHEDRALS, DURHAM, YORK MINSTER, ST. GILES,...
O) 1977 CHILE, GOVERNMENT JUNTA AND SOCIAL SERVICES OF ARMED FORCES, FDC XF
O) 2016 SIERRA LEONE, OLD CAR, SUPERSONIC PLANE, CONCORDE, PUBLIC...
O) 1902 AUSTRIA, EMPEROR FRANZ JOSEPH I. 2h, 6h, POSTAL CARD CIRCULATED XF
O) 1921 AUSTRIA, AUSTRIA CROWN 10h magenta, COAT OF ARMS, INNSBRUCK, CIRCULATED TO USA, POSTAL STATIONERY
O) 1924 CIRCA, AUSTRIA, SYMBOLS OF ART AND SCIENCE, SURCHARGED 1000k, TAX, VERY NICE
O) 1972 AUSTRIA, INTERNATIONAL ASTRONAUTICAL CONGRESS, OFFICIAL CONGRESS ENVELOPE, XF
O) 2004 AUSTRIA, SWAROVSKI CRYSTAL -SWAN - BIRD, SPECIAL EMISSION , KRISTALLWELTEN-OSTERREICHISCHER, MNH
O) 2022 COLOMBIA, BILATERAL RELATIONS WITH UNITED STATES, BIRDS, ANDINO CONDOR, CHIRIBIQUETE SERRANIA NATURAL PARK, BALD EAGLE, GLEN CANYON, LANDSCAPE, FDC AND FDB