Lot 80043 – France – Second Empire issue 1f, one glass support cliché in carmine,

France – Second Empire issue 1f, one glass support cliché in carmine, image reversed.with Sperati’s manuscript dating June 1949 and production notes “1 dos fait tiré …“, indicating a satisfactory final result to make the reproductions; a spectacular technical cliché of the highest grade of importance and rarity.