Malta. 1873 (July 4). Entire letter to New York, paying the 4d rate for carriage to France and 6d transatlantic rate via London with 1872 4d vermilion pl. 13 and 6d pale buff pl. 11, each tied by « A25 » duplex, with London transit and « 2 » accountancy marking denoting the British share of the transatlantic postage, carried by French packet via Marseilles to London, and placed on board the Cunard SS « Russia » at Liverpool; a rare combination franking not included in the Wood collection of British P.O.’s Abroad; cert. Briefmarkenprüfstelle Basel (2003).