1857-1861 Issue Transatlantic Mails, group of three covers on exhibit pages, comprising #63 paying carrier fee on rebacked cover to Paris, #78 on cover with scarce Chicago "3 Cents" exchange credit h.s., #116 on insufficiently prepaid cover to Prussia with "Insufficient 4 Sgr" circular h.s., cover faults, Fine group. Estimate  $150 - 200.Complete images: View gallery or Download PDF (434KB) $0 (Image)