Los 1532
1874, Rivadavia 5c. brick-red tied by oval shaped cancel "CORREO... de ROSARIO" and cds. "BUENOS AIRES" to folded letter endorsed "Pr. Steamer Po" to Genoa, with three-line "VIA DI MARE (E)" alongside, upon arrival charged with "4" decimes thus postage due 40c. applied and tied by cds., light fold just touching adhesives, otherwise fine
