10 C Rivadavia green, diagonally bisected, lower left half, left margin touched, used as 5 C stamp on entire folded letter with full content from BUENOS AIRES to Gualeguay in the Entre Rios province, dated in the text 10.AU.1870, very fine
6; Übersee A-Z; ARGENTINIEN; Markenausgaben
6; Overseas A-Z; ARGENTINA; Stamp Issues