(Treaty Port) 1867 (Apr 1) envelope to Fisherville, New Hampshire, USA containing two letters written from “U.S.S. Wachusett, Hong Kong” franked 1862 No Watermark 18c wing marginal and 1863-71 4c. and 24c. each with B62 obliterator, reverse with dark blue SHANGHAF cds of AP 8 with ‘F’ for ‘E’ and a Hong Kong cds of AP 12, front showing red London Paid, red manuscript rate markings “1/10 ½’ altered to “1/9 ½” and “l” for local carriage, sent via London and New York; some ageing mostly around edges, a fine cover.