(Outgoing Philadelphia) 1857 Philadelphia, Pa. To Sebastopol, Russia, folded letter with red "Philadelphia, Pa., Paid, Oct 16" cds with matching "Paid 30" rate handstamp, endorsed, "per French Mails" with Le Havre transit postmark and partial red Aachen "Aus Frankreich" cds, reverse with blue manuscript "f6" for 6sgr paid beyond Prussia and Russia "5 Kops", Very Fine, a most unusual cover. Estimate  $750 - 1,000. $0 (Image)