China. (French Indo-China). 1903. Stamp-less envelope endorsed 'Corps D'Occupation' addressed to Paris cancelled by Haiphong/Tonkin double ring with circular 'Corps Expeditionaire' with military '18th Regiment D'Marche Anamite Coloniale' in blue, signed by the Commander with 'T' hand-stamp and bearing French postage due Yvert 33, 30c rose (pair) tied by Paris obliteration. Mail from the French Occupation should not have been taxed. This cover was charged the double letter rate.