Title: The Blind Lead the Blind
Description: Welfare Magazine : v.29, November 1928, pp. 1248-1255. Discusses new inventions from Paris adding the blind.  A cross-word puzzle board for the blind and a new mathematical frame with figures letters and symbols adapted for learning simple and higher mathematics. In addition to an improved typewriter for the blind and a high speed press for increased blind production. 
Subjects: Assitive Technology, History, Blindness