Lot 61618 – 1863 10c blue on transatlantic cover

1863 10c blue, clear to large margins, tied by oval hs on dispatch on March 1864 cover from Bogota to Paris, carried via Br. P.O. at Cartagena with corresponding double-arc ds on back, obverse struck with « GB/1F60c » accountancy hs, French entry and « 8 » decimes charge, some slight soiling and vertical crease through the stamp; only three covers (not cover fronts) are known bearing this value addressed to a transatlantic destination; cert. Bortfeldt (2009) and Martínez (2021).