Valriz Very Old Tawny Port, Coimbra de Mattos 1858

Very pale golden tawny (just slightly deeper the the ancient blend of white port from the same source. Rather more fragile on the nose than the ancient white port from the same source. Much sweeter at first and then with masses of concentrated acidity on the finish. Extremely delicate. A historic fragment. Most unusual. Sip, thinking about what was going on in the world in 1858... Heaven knows what sort of port this is technically! Heaven knows what the correct drinking window should be....