cover 1921 (13 May) a commercial envelope (slightly reduced at op) from the Vacuum Oil Company, registered to England, bearing ½c. on 1c. (2), 1c. on 2c., 2c. on 5c. (4) and 8c. on 20c. (2) tied by the Italian Post Office c.d.s. and showing finr strikes of the registered handstamp and large handstruck "R" with various transit marks; a colourful frankiing paying the correct rate of 26c. Photo