China - U.S. Offices, 1872 "U.S. Postal Agc'y Shanghai, Feb 19". Cds on 1872 "American Presbyterian Mission Press" corner card cover to Pennsylvania, fancy circle of wedges cancel tying 1870 10¢ brown, bold magenta "San Francisco, Paid, March 24" entry backstamp, with original printed letterhead enclosure, slight cover soiling, otherwise Very Fine. Scott No. 150  Estimate $500 - 750. $0 (Image)

China - U.S. Offices, 1872 "U.S. Postal Agc'y Shanghai, Apr 12". Cds on 1872 missionary corner card cover to Pennsylvania, fancy circle of wedges cancel tying 1870, 10¢ brown, San Francisco May 16 backstamp, with original 8 page enclosure, Very Fine and attractive. Scott No. 150  Estimate $500 - 750. $0 (Image)

China - U.S. Offices, 1872 "U.S. Postal Agc'y Shanghai, Jul 26". Cds on 1872 missionary corner card cover to Pennsylvania, fancy circle of wedges cancel tying 1870, 10¢ brown, San Francisco Aug 31 receiver, with original 6 page enclosure, cover with rough opening at right, F.-V.F. Scott No. 150  Estimate $400 - 500. $0 (Image)

China - U.S. Offices, 1872 "U.S. Postal Agc'y Shanghai, Oct 12". Cds on ca. 1872 missionary cover to Pennsylvania, fancy circle of wedges cancel tying 1870, 10¢ brown (edge faults), "San Francisco, Cal., Nov 15" receiver, small cover faults, original enclosure with silk cloth sample, F.-V.F. Scott No. 150  Estimate $300 - 400. $0 (Image)