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, FRONT LETTER FROM LARES, FECHADOR DATE TYPE 1854, PARRILLA COLONIAL, 1/2 real MANUSCRIPT, AND STAMP
O) 1889 PUERTO RICO - PORTO RICO - US OCCUPATION, ULYSSES GRANT 5c, MILITARY STATION, FROM PONCE P.R TO NEW YORK
O) 1891 HAWAII, KING DAVID KALAKAUA 2c rose, FROM HONOLULU TO OAHU, XF
O) 1894 HAWAII, LYDIA KAMAKAEHJA, QUEEN LILIUOKALANI, PEPA POO, POSTAL STATIONERY KALALAUA, CIRCULATED XF
O) 1896 HAWAII, HONOLULU, VIEW OF HONOLULU 5c, PROVISIONAL GOVERNMENT 1898 OVERPRINTED IN RED, VIA SWITZERLAND, TO BERN, TRANSIT SAN FRANCISCO, XF
O) 1898 HONOLULU, HAWAII, US OCCUPATION, STATUE OF KAMEHAMEHA 5c, BARREL CANCELLATION, CIRCULATED TO FRANCE, TRANSIT SAN FRANCISCO, XF
O) 1899 CARIBBEAN, USS OCCUPATION, SPECIAL PRINTING IN DARK BLUE, ULYSSES GRANT SC 2255c on 5c blue, OVERPRINTE SURCHARGE, XF
O) 1899 CIRCA - PHILIPPINES - US POSSESSIONS, GARFIELD 6c OVERPRINTED IN BLACK, TO TACANA
O) 1899 PHILIPPINES ISL´DS, US OCCUPATION, MILITARY STATION, WORCESTER MASS RECEIVED, XF
O) 1899 PHILIPPINES- US POSSESSIONS, SOLDIER´S LETTER , PHILIPPINE ISLANDS - MANILA, CHAPLAIN, WASHINGTON 2c POSTAL STATIONERY, XF
O) 1899 PHILIPPINES. US OCCUPATION,PENALTY FOR PRIVATE - WAR DEPARTMENT - OFFICIAL BUSSINES - POSTAGE DUE WASHINGTON 2c, RECEIVE
O) 1899 PORTO RICO, PENALTY . PRIVATE - POST OFFICE - MILITARY STATION - OFFICIAL BUSINES, ULYSSES GRANT 5c, WEBSTER 10c, XF
O) 1899 PORTO RICO, US ADMINISTRATION, MILITARY STATION, PENALTY BY LAW FOR USING, THIS ENVELOPE TO AVOID PAYMENT, WILLIAM T. SHERMAN, FRONT LETTER, DANIEL WEBSTER, XF
O) 1900 CIRCA - PHILIPPINES. US OCCUPATION, TRANSMISSISIPI ISUE, GARFIELD 6c, INDIAN HUNTING BUFFALO 4c, TROOPS GUARDING
O) 1900 CIRCA- PHILIPPINES - USS OCCUPATION, COMPLETE LETTER, WASHINGTON 2c POSTAL STATIONERY - STATIONARY, TO INDIANA
O) 1900 PHILIPPINES - US OCCUPATION, MILITARY STATION - MANILA, USAGE OF US SOLDIER, ULYSSES GRANT 5c, NICE COVER, XF
O) 1900 PHILIPPINES, US OCCUPATION, SOLDIER LETTER - POSTAGE DUE - PENALTY FOR PRIVATE - WAR DEPARTMENT - OFFICIAL
O) 1900 PORTO RICO, USS ADMINISTRATION, WASHINGTON, FRANKLIN, EXCHANGE, FRITZE, TRANSIT NEW YORK, MULTIPLE STAMPS, XF
O) 1900 PUERTO RICO , US OCCUPATION, FROM LAS MARIAS P.R. , WASHINGTON 2c OVERPRINT, XF
O) 1900 PUERTO RICO, OVERPRINTE PORTO RICO ON WASHINGTON 2c, TO ARROYO P.R., DE SOLA AND RAMIREZ, XF
O) 1900 PUERTO RICO - MAGUAYO - MACUAYO P.R. - PORTO RICO, US OCCUPATION, WASHINGTON 2c OVERPRINTE, TO SAN JUAN P.R.
O) 1901 GUAM, US POSSESSIONS, ENGINEER OFFICE US ARMY, SPECIAL DELIVERY 10c OVERPRINTED IN RED - MESSENGER RUNNING, WASHINGTON 2c
O) 1901 HONOLULU, HAWAII, US OCCUPATION, ULISSES S. GRANT 5c blue, POSTAL STATIONERY CIRCULATED TO JAPAN, XF
O) 1901 PHILIPPINES, FROM MANILA P.I., WASHINGTON 2c POSTAL STATIONERY - STATIONARY, TO NEW YORK - USA
O) 1901 PUERTO RICO - PORTO RICO, US OCCUPATION, RETURN RECEIPT, WILLIAM SHERMAN 8c, DANIEL WEBSTER PORTO RICO OVERPRINTE
O) 1901 PUERTO RICO- JOSE CERECEDO AGENCY, ULYSSES GRANT SC 281 5c, TO GERMANY, NEW YORK TRANSIT, XF
O) 1902 GUAM, US POSSESSIONS, AGAÑA GUAM, ISLAND OF GUAM, JAMES A. GARFIELD 5c, TO GERMANY, XF
O) 1902 PUERTO RICO - PORTO RICO - US OCCUPATION, RARE, SHERMAN, REGISTERED FROM MAYAGUEZ PORTO RICO, THE CONTINUING
O) 1902 PUERTO RICO. US OCCUPATION, JACKSON 3c, GRANT 5c, POSTAL STATIONERY FROM PONCE VIA NEW YORK TO GERMANY
O) 1903 PHILIPPINES - MANILA P.I, VIA HONG KONG VIA ZAFIRO, TO REMSCHEID, ULYSSES GRANT 5c, XF
O) 1903 PHILIPPINES - MANILA P.I. - US OCCUPATION, E.S IN LACRE - SEALING WAX, ULYSSES GRANT 5c, ENRIQUE SPITZ, TO REMSCHEID - GERMANY, XF
O) 1903 PUERTO RICO MAYAGUEZ P.R. - PORTO RICO, US OCCUPATION, WEBSTER 10c, VIA NEW YORK, FRENCH RECEIVER, EX-MOLESWORTH
O) 1904 PHILIPPINES - MANILA, US OCCUPATION, FRANKLIN 1c, PHILIPPINES SURCHARGE, ENRIQUE SPITZ, TO REMSCHEID - GERMANY
O) 1905 PHILIPPINES - MANILA P.I. FRANKLIN 1c, ARCHITECTURE . CULTURE - HOME -THRESHING RICE - ECONOMIC ACTIVITY IN MANILA, POSTAL CARD, XF
O) 1906 CANAL ZONE, POSTAL STATIONERY, FROM QUARRY HEIGHTS, CIRCULATED TO USA
O) 1906 PHILIPPINES - US OCCUPATION, PENALTY FOR PRIVATE USE - OFFICIAL MAIL, CONSTABULARY, LINCOLN 4c, TO MANILA, XF
O) 1906 PHILIPPINES . US OCCUPATION, NEGROS ISLD, PENALTY FOR PRIVATEUSE, OFFICIAL MAIL, LINCOLN 5c, FRANKLIN 1c, THE PROVINCIAL
O) 1906 PHILIPPINES, US OCCUPATION, PENALTY FOR PRIVATE - CONSTABULARY, RARE TOWN, FROM PAMPANGA, WASHINGTON 2c, TO MANILA
O) 1906 PHILIPPINES- US OCCUPATION, PENALTY FOR PRIVATY - CONSTABULARY, FROM MALOLOS BULACAN, RARE TOWN, JACKSON 3c, XF
O) 1916 HAWAII, NAVY DEPARTMENT STEMPEL PEARL HARBOUR, PENALTY FOR PRIVATE, CIRCULATED XF
O) 1921 PUERTO RICO - CENTRAL AGUIRRE P.R., - R.Y. HOLLINGSWORTH, WASHINGTON 2c, MORSE CODE REVERSE, TO INDIANAPOLIS, XF
O) 1925 CANAL ZONE, OVERPRINTE POSTAGE DUE WASHINGTON 2c, STRIP BY 3 STAMPS
O) 1927 CANAL ZONE - EMPIRE, MAP OVERPRINTE , FERNANDEZ DE CORDOBA OVERPRINTE, TO SWEDEN
O) 1928 CANAL ZONE,- US POSSESSIONS, NATHAN HALE, CANAL ZONE OVERPRINTE IN RED, THE PANAMA CANAL - OFFICIAL BUSINES, TO USA
O) 1929 CANAL ZONE, BALBOA HEIGHTS, MAJ GEN. GEORGE WASHINGTON GOETHALS -POSTAGE DUE OVERPRINT LINDBERGH-FIRST FLIGHT