Lot 50450 – Colombia – 1861 “Nueva Granada” 1p, master negative

Colombia – 1861 “Nueva Granada” 1p, master negative on celluloid film, designated “a”, particularly fine impression showing production notes at top and at base a tiny white paper affixed with a note “pas terib.” (not terrible); a spectacular item that takes us inside the Sperati workshop, one of two recorded for this issue.