1853 (Feb. 26) San Francisco, Cal. to London, England, blue folded cover with black "San Francisco Cal 1 Mar" cds with matching "Paid" and "29" rate handstamps, Boston red "19" credit h.s. to G.B., carried by Cunard Line Canada from Boston Mar. 30 to Liverpool arriving Apr. 10, red London (4.11) tombstone d.s., Very Fine, the only recorded example of this "29" rate handstamp in black. Estimate  $200 - 300. Letter carried by Pacific Mail Steamship Co. steamer "Oregon" from San Francisco to Panama City and by U.S. Mail Steamship Co. steamer "Georgia" from Chagres to New York. Under U.S.-G.B. Convention, U.S. internal portion of total rate from West Coast was 10¢ from July 1851 until July 1863, or 5¢ more than other locations in the U.S. $0 (Image)