1935 China Clipper First Flight Cover Honolulu to San Francisco, Dec 5

Airmail cover carried on the December 5, 1935 China Clipper flight from Honolulu to San Francisco. Features patriotic red-and-blue bordered envelope and purple flight cachet marking the Honolulu San Francisco Alameda leg. Tied by clear Honolulu machine cancel, with Pine Bluff, North Carolina receiving mark on reverse. Addressed in ink and postmarked during the early Pan Am transpacific airmail era.