Lot 51107 – 1939 (June 24) First flight registered cover Northern Trans-Atlantic England to China mixed USA China franking

1939 (June 24) First flight registered cover, the Northern Trans-Atlantic England to China air mail flight, addressed to New York, with USA and China mixed franking, cancelled in New York 24 June, endorsed « By Pan American Airways Service via Hong Kong/Manila », Shanghai cds dated 12 July cancelling Chinese franking, Hawaii and New York registered marks on reverse, as well as a Hong Kong transit dated 6 July, a fine and rare cover.