1892, 1 C brown used as additional franking to complete the UPU postcard rate on Switzerland 5 C numeral domestic reply card, returned from BUENOS AIRES, ST 19 95, to Nice in France. Message on reverse of card partly blurred, else F/VF. Very unusual combination and usage!
1892, ”1 C. Rivadavia” als Auffrankierung auf 5 C. Antwortkarte Schweiz (UPU-Portorate) von BUENOS AIRES, ST 19 95 nach Nizza in guter Bedarfserhaltung