Auction # 2506 WORLDWIDE + ARGENTINA: Special auction Punta del Este Exposition

RARE FRANKING WITH TWIN VALUES, originating in Germany, endorsed to Anvers and carried to Argentina by Belgian paquebot: Entire letter datelined "NÜRNBERG 27/SE/1870" to Buenos Aires endorsed "Par voie d´Anvers", sent to Anvers (see part of blue mark on back), by "..ROY & Co - (AN)VERS", where it was franked with 80c. using 2 stamps of 40c. from different issues (1867 40c. rose Leopold I + 1869/70 40c. rose Leopold II) with "12" numeral cancel along datestamp of Anvers 30/SE, also "P.P.", with the rare mark "CONFon ARGne - PAQ. BELGE" applied on back on 1/OC, in general of very fine quality, extremely rare combination of origin, endorsement, rare postage and carried by Belgian paquebot co. (few covers sent to Argentina are known), unique and unrepeatable!