1856, superb tricolour franking at 2f70 composed entirely of imperforated Empire Y&T n°13 +14 + 17A in a strip of three copies. Departure from Paris on 22 July 1856 for Buenos-Aires (Argentina) via England. "PD" + English transit stamp on front. "Paris to Calais" on reverse. The stamps are cancelled with large dots and are all VF/SUP with neighbours for four of them. Signed Brun and Calves. Letter of exceptional quality.