American portable typewheel machines, ink-roller, downstroke, 28 keys in 3 rows, 2 shift-keys, 84 characters, invented by George C. Blickensderfer (1850–1917) in 1891 and manufactured by the Blickensderfer Typewriter Co., Stamford, Connecticut. 1) "Blickensderfer No. 7", 1898 onwards, serial no. 124953, DHIATENSOR keyboard, working. – Literature: Martin, 1949, p. 136. (3/3) – 2) "Blickensderfer No. 9", 1914, serial no. 177075, QWERTY keyboard, with original oak case, somewhat rusty, mechanism stiff. (3/3) – And: 3) "Rem-Blick", 1927, Remington Typewriter Company, no. KS80627, QWERTY keyboard, working, with case. (2–3/2–3)品相: (–/–)