1850 (May 1) San Francisco Cal. to London, England, folded letter with red "San Francisco, Cal., May 1" cds with manuscript "59¢" unpaid rating, New York "40" circled debit h.s. to G.B., carried by Cunard Line Asia from New York Jun. 12 to Liverpool arriving Jun. 22, red London (6.23) backstamp and manuscript "2/5½" due rating, Very Fine, a very scarce 59¢ California rate usage to England. Estimate  $300 - 400. Letter carried by Pacific Mail S.S. Co. "Panama" to Panama and U.S. Mail S.S. Co. "Georgia" from Chagres to New York. $0 (Image)