10c Yellow Green, F. Grill (96).
Tied by 8-point hollow star cancel with "San Francisco Cal. Mar. 20" (1870) circular datestamp on blue cover from Yokohama, Japan, to Lewisboro, N.Y.,
endorsed "U.S. Flagship Delaware"
at top left, minor edgewear, stamp with few toned spots and flaw at right, otherwise Fine, scarce use, carried on the PMSS China,
which arrived in San Francisco on March 19 after 23 days in transit, the Delaware
was the flagship of the Asiatic fleet
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