San Francisco, Cal., Jul 5 (San Francisco), clear cds (SAF-360) on 1856 double rate folded letter to Antwerp, Belgium, with red Paid handstamp magenta "52" rating, red "New York, Am. Pkt., Aug 2" exchange cds, London backstamp and "U.S. Pkt." handstamp with manuscript "8" pence debit to Belgium with blue "12" total postage due, Antwerp arrival backstamp, Very Fine, scarce letter from California to Belgium. Estimate  $300 - 400. $0 (Image)