1918 (Oct-Dec) two covers to Washington, D.C., each paying 2c, canceled "U.S. Postal Agency Shanghai China", fine-v.f. (Image)

Est.$150

1919 4c on 2c rose, block of four, used, fine-v.f., with 2021 PFC, cat. $375 (Cat No. K2) (Image)

Cat. $375, Est.$300

1919 Shanghai surcharges 14c/7c and 16c/8c tied by oval "U.S. Postal Agency Shanghai, China" datestamp on small "Registered Return Receipt" cover from Peking to USA, with August 17, 1922 U.S.Postal Agency Shanghai cds and Chicago arrival markings on back, also a receipt slip, fine cover, with 2015 PFC, ex-Twigg-Smith (Cat No. K7,8a) (Image)

Est.$600