1) "Bar-Lock No. 6", c. 1886, serial no. 32791, Columbia Typewriter Co., New York, invented by Charles Spiro, typebar machine with wonderfully decorative Baroque-styled pressed copper front shield, carriage movement defective. – Literature: Martin, 1949, p. 102. (3/4) – And: 2) "Hammond No. 12 Universal", 1904 onwards, serial no. 70686, early American typewriter with straight universal keyboard of 3 rows and 30 keys, nickel-plated metal mesh paper tube, single-piece type-shuttle, working, with oak base and lid. (2–3/2–3)品相: (–/–)