1861, Numeral 1 c. without embossed "1", fresh colour and good to large margins, original gum unmounted mint. A very fine copy of this rare stamp, of which only one sheet with original gum has been recorded (but which is common without gum). Signed Enzo Diena and certificates R. Diena (1996) and Bolaffi (1993) (Sassone 19h)
