1866, folded cover to Nantes, France, reverse with St. Thomas double-arc despatch of the British Post Office (13 Jul), carried by the Royal Mail Steam Packet Company to London (30 Jul), “GB / 1F60c” British-French accountancy mark and 10 (decimes) due marking struck on front, ANGL / AMB CALAIS entry c.d.s., backstamped “Paris a Nantes” (30 Jul), with next-day arrival c.d.s., fine.
