Lot 372
1892, Belgrano 12c. blue together with Italy Umberto I 25c. on envelope addressed to Milan and endorsed "Vapore SIRIO" which did not pass through the local P.O. and was embarked on the Sirio by the sender who added an Italian stamp to pay the Italian postage, thus both stamps tied by "SIRIO - PIR. POSTALE ITALIANO", cover with some minor tears etc., nevertheless a unusual and interesting "mixed" franking, signed A. Diena a.o. and certificates A. Diena (1957) and Raybaudi-Massilia (1979)
