Chorded keyboard (a writing system for the blind) uses either 6 or 8 tactile 'points' from which all letters and numbers are formed. When Louis Braille invented it, it was produced with a needle holing successively all needed points in a cardboard sheet. In 1892, Frank Haven Hall, superintendent of the Illinois Institute for the Education of the Blind, created the Hall Braille Writer, which was like a typewriter with 6 keys, one for each dot in a braille cell. The Perkins Brailler, first manufactured in 1951, uses a 6-key chord keyboard (plus a spacebar) to produce braille output, and has been
The Blind Man and the Lame and an angel hovering in the background underlines the earlier Christian connotation of the emblem tradition. Honoré Daumier used Florian's fable for purposes of political satire in a caricature, "Blind system and paralytic diplomacy", published in "Le Charivari" in 1834. It pictures King Louis Philippe staggering under the weight of Talleyrand. Such treatment contributed to the emergence of the French idiom, ""L'union de l'aveugle et le paralytique"" ("the union of the blind man and the lame"), that drew on Florian's poem but was used ironically in reference to any unpromising partnership. Another such appears in a poster by Jules Grandjouan