cover 1879 (24 March) printed envelope, hand-coloured and used from Ross to "Mr. Joseph Abel, The victim of Magisterial tyranny, Farringdon, Berks.", showing long imprint on flap containing diatribe against vaccination, bearing 1864-79 1d. tied by "ROSS" duplex, some minor perimeter faults (mostly at top), otherwise fine. Rare and most attractive. Photo