cover 1907-08 registered envelopes (2) to U.S.A., the former (roughly opened at siades) bearing 2c. and 4c. vertical pair (faults) cancelled by U.S. Postal Agency d.s. (30.3.07) with Registered d.s. in violet, adjacent and the latter bearing 1c. (2, one has straight edge) and 8c. cancelled by "REGISTERED/U.S. POSTAL AGENCY/SHANGHAI" d.s. (17.1) in violet