1818, entire letter endorsed inside “Zante 7 Augusto” to Corfu, faint red circular “IS(OLA) DI (ZANTE)” and framed “FRANCA”, fine, together with a 1819 entire letter from Malta to Corfu, endorsed “P. Osprey” and with faint red circular “ISOLA IONIE” with manuscript "45." gazette to pay, fine, both entires slitted and treated against cholera. A rare and early duo from the British Protectorate period