Lot 50016 – Bolivia – 1868 500c Nine Stars, original matrix on film

Bolivia – 1868 500c Nine Stars, original matrix on film, being the first step in the process to execute the reproductions, with notations on sides and base including “Alpha BCK” fil of the English brand “Ilford” used by Sperati before WWII, also “hiver” referring to the winter as the chemical substance used was probably reacting better at around 15° in his laboratory, with this being produced in January 1930, undoubtedly unique and the basis to produce clichés.