Sweden, ARGENTINA, Swedish cover franked with 5+25 öre Gustaf V in Medallion cancelled by ink "s/s Prinsessan Ingeborg", sent to Argentina where an additional Argentine stamp 10 c have been added and cancelled BUENOS AIRES 8.JUL.1912. Then forwarded to Brazil with arrival pmk SANTOS H NOITO 12.JUL.1912. One stamp oxidized. Highly interesting item. (Image1)