Lot 50542 – Italian States, Sicily – 1859 50gr, glass support cliché

Italian States, Sicily – 1859 50gr, glass support cliché reversed image, prepared in brown, with notations which indicate a 3 min 30 secs exposure to light, 22° environmental temperature for the production and 7% of a chemical used to obtain the colour; rare example with less than ten glass clichés recorded in private hands.