Klischograph half tone block engraving machine K150 serial No.04122559, c. 1955, with samples of Nolar foil plates used with machines Klischograph half tone block engraving machine K150 serial No.04122559 1955
Hell 'Klischograph' half tone block engraving machine, Model K150, serial No.04122559,1950-1960. Hell's 'Klischograph' Electronic Block Engraving Machine, 1950-1960 1950-1960