1866 (Aug. 16) San Francisco, Cal. to Herford, Germany, cover with neat "San Francisco Cal Aug 16" cds and bearing three 10¢ green (68) overlapping singles tied by cogwheel fancy cancels, overpaying the 30¢ Prussian Closed Mail rate by 2¢, red "N. York Am Pkt '7 Paid' Sep 3" exchange cds, blue Aachen Franco (9.10) framed transit, German (9.11) arrival backstamp; small flaws, some docketing, Fine. Estimate  $200 - 300. $0 (Image)