Los 6278
MEXICO - JAMAICA: 1868, Lettersheet with frontside forwarding agent mark "BÜSING, MERTENS & Co. Veracruz / FEB 1 1868" sent to St. Thomas forwarding agent Schon Willink & Co. (blue oval on reverse) and sent via British post, franked with 4 d. vermilion, cancelled "C51" from "ST. THOMAS FE 17 68" to Kingston with arrival mark