United States. (Tonga- Tin Can Mail). 1939. Envelope addressed to 'The Government Post Office, Tin Can Island, Tonga' bearing United States 'Prexie' SG 802, 2c cerise (pair) tied by Burlingame roller 'Aug 2nd 1939', underpaid with circular 'Centimes 10/ T' on face, with various Tin Can Mail hand-stamps on face and reverse including 'Dispatched by Tin Can Mail/ Niuafoou, Tonga and framed 'Inward Tin Can Mail' and 'La Isla de Bote de Lata, T.C.M.' in carmine on reverse.