San Francisco/40/1 June.
Perfect bold strike of red integral 40c rate circular datestamp on blue folded letter to Taunton Mass., datelined "San Francisco 30th May, 1850"
with interesting content -- "...I am now in command of the steamer Major Tompkins on the Sacramento river...We make our first trip tomorrow."
-- sender's ship-name directive "Steamer Oregon June 1st",
Extremely Fine, this is the earliest known use of this San Francisco 40c integral-rate datestamp, sent via Pacific Mail Steamship Co. Oregon,
departing San Francisco on June 1 and arriving in Panama on June 21, then by U.S. Mail Steamship Co. Georgia,
departing Chagres on June 26 and arriving in New York on July 8, pictured in Wiltsee's Gold Rush Steamers of the Pacific
(p. 380), ex Walske
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