London to San Francisco via New York 1867, with Extremely Fine Agent's Cachet in Blue. Ship in double oval handstamp of H. Starr & Co., agents for the Pacific Mail Steam Ship Company, the Panama Rail Road Company. And the California & British Columbia Steam Ship Company, folded letter with printed letterhead of those companies named. Sent unpaid (due 24), postmarked with San Francisco cogwheel duplex (though letter carried without stamps), Very Fine, A lovely and quite scarce handstamp, ex Kramer. Estimate  $1,000 - 1,500. $0 (Image)