O) 1995 KIRIBATI, END OF WORLD WAR II, REVERSE OF WAR MEDAL 1939 - 1945,...
O) 1973 GERMANY, NICOLAUS COPERNICUS, HELIOCCENTRIC MODEL, EXHIBITION IN...
O) 1902 PERU, MANCO CAPAC, FOUNDER OF ICA DYNASTY, TOSS AND DATE...
O) 1916 AUSTRIA, AUSTRIAN CROWN 10h, POSTAL STATIONERY UNUSED
O) 1995 ALDERNEY, RETURN OF THE ISLANDERS 1945, STEAMBOAT, MNH
O) 1995 GRENADA AND GRENADINES, SECOND WORLD WAR, - PEACE IN THE...
O) 1839 PUERTO RICO, PREPHILATELIC, MARK IN RED, DOUBLE LINE BOX CANCELLATION, COMPLETE LETTER, CIRCULATED TO PUEBLA DE LOS ANGELES, MEXICO
O) 1858 PUERTO RICO -ANTILLAS, PLICA JUDICIAL FRANQUEADA-GREAT RARE-OVAL CANCELLATION OF BLACK INK LIGHTS-SUPERIOR TERRITORIAL
O) 1858 PUERTO RICO, FRONT LETTER FROM LARES, FECHADOR DATE TYPE 1854, PARRILLA COLONIAL, 1/2 real MANUSCRIPT, AND STAMP
O) 1864 PUERTO RICO - SPAIN, QUEEN ISABELLA II 1r green, FROM PORRAS AND MONTALVO -FORWARD AGENT, SAN JUAN DE PUERTO RICO TO CARIBE - CUBA, V.F.
O) 1867 PUERTO RICO BRITISH, QUEEN ISABEL II, ADMINISTRACION GENERAL DE RENTAS INTERNAS CANCELLATION TO VEGA BAJA, FRONT LETTER
O) 1867 PUERTO RICO, 1/2 REAL PLATA F.-ISABEL II,JUDICIARY LETTER, WITH VIOLET ROSE, SPANISH DOMINION, XF
O) 1873 PUERTO RICO CANCELLATION, ULTRAMAR 1873 -AMADEO UNA PESETA, SCT 57-MANUSCRIPT CANCELLATION, FRAGMENT XF
O) 1876 PUERTO RICO - PORTO RICO - BRITISH POSTAL AGENCY, QUEEN VICTORIA 4p - LETERRED EA, BARRED NUMERAL C61 - STANLEY GIBBON Z90
O) 1876 PUERTO RICO BRITISH POSTAL - MAYAGUEZ P.P. QUEEN VICTORIA, COMPLETE LETTER, PAID LONDON, TO SPAIN, XF
O) 1889 PUERTO RICO - PORTO RICO - US OCCUPATION, ULYSSES GRANT 5c, MILITARY STATION, FROM PONCE P.R TO NEW YORK
O) 1894 PUERTO RICO, KING ALFONSO XIII, POSTAL STATIONERY 8f YELLOW PAPER, XF
O) 1898 - PUERTO RICO - MUESTRA. SPECIMEN, SPANISH COLONY, KING ALFONSO XIII, VERY NICE LOT
O) 1898 PUERTO RICO - SPAIN, KING ALFONSO XIII Yvert 126 8c rose, TIED BY PLAYA MAYAGUEZ, DOUBLE RING WITH PARIS ARRIVAL, VERY FINE
O) 1900 PORTO RICO, US ADMINISTRATION, TRANSATLANTIC MAIL AND SPAR, ULYSSES S. GRANT . BASEL CANCELLATION, MULTIPLE STAMPS
O) 1900 PUERTO RICO, OVERPRINTE PORTO RICO ON WASHINGTON 2c, TO ARROYO P.R., DE SOLA AND RAMIREZ, XF
O) 1901 PUERTO RICO - PORTO RICO, US OCCUPATION, RETURN RECEIPT, WILLIAM SHERMAN 8c, DANIEL WEBSTER PORTO RICO OVERPRINTE
O) 1901 PUERTO RICO - PORTO RICO, US OCCUPATION, SUCESOR DE A.J. ALCALDE, MANUSCRIPT CANCEL - ULYSSES GRANT 5 CENTS BLUE
O) 1901 PUERTO RICO- JOSE CERECEDO AGENCY, ULYSSES GRANT SC 281 5c, TO GERMANY, NEW YORK TRANSIT, XF
O) 1902 PUERTO RICO - PORTO RICO - US OCCUPATION, RARE, SHERMAN, REGISTERED FROM MAYAGUEZ PORTO RICO, THE CONTINUING
O) 1903 PUERTO RICO MAYAGUEZ P.R. - PORTO RICO, US OCCUPATION, WEBSTER 10c, VIA NEW YORK, FRENCH RECEIVER, EX-MOLESWORTH
O) 1903 PUERTO RICO, SEAL JUNCOS, USA OCCUPATION IN PUERTO RICO, 2 CENTS RED - PRESIDENT WASHINGTON, TO NEW YORK, XF
O) 1909 PUERTO RICO, US OCCUPATION IN PUERTO RICO - TWO CENTS RED-ABRAHAM LINCOLN 1809, XF
O) 1921 PUERTO RICO - CENTRAL AGUIRRE P.R., - R.Y. HOLLINGSWORTH, WASHINGTON 2c, MORSE CODE REVERSE, TO INDIANAPOLIS, XF
O) 1927 PUERTO RICO, US POSSESSION, OFFICIAL BUSSINES, DEPARTMENT OF LABOR - INMIRATION, BATTLES OF BENNINGTON ORISKANY
O) 1931 PUERTO RICO, US OCCUPATION, FIRST FLIGHT - SAVE TIME, LINDBERGH10 CENTS, AIRPLANE, COVER TO NEW ORLEANS, XF
O) 1938 PUERTO RICO, US OCCUPATION, CENTRAL AGUIRRE, USA FOREIGN CANCELLATION, RECEIVED IN SANTIAGO, XF
O) 1940 PUERTO RICO, US OCCUPATION, GEORGE WASHINGTON, WASHINGTON 2 centavos red, POSTAL STATIONERY CIRCULATED TO SANTIAGO DE CHILE
O) 1941 PUERTO RICO, F.A.M 22, USA AIRMAIL TO AFRICA, CIRCULATED TO BATHUR ST. GMABIA, WEST AFRICA, US OCCUPATION, TWIN MOTORED TRANSPORT PLANE, XF
O) PUERTO RICO, PREPHILATELY, 2 PORTAGE, VIA SCHON AVELLANEDA ST THOMAS AGENCY, TO GUANTANAMO, FINE