1857 (Apr. 18) Diamond Springs, Cal. To Copenhagen, Denmark, orange buff cover with blue "Diamond Springs, Cal., Apr 18, 1857" cds and manuscript "Paid 35" cent rating, sent via Panama to New York, red "New-York Am. Pkt. May 16" exchange cds with matching "12" cent credit handstamp, framed Aachen (6.2) transit and red manuscript "2" sgr. credit to Denmark, Belgian (6.3) transit backstamps; opening tear at right and flap tear; F.-V.F. Estimate  $200 - 300. $0 (Image)