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
Riley Two-Point-Six grille lifted with the bonnet, the Two-Point-Six, in common with the 6/90, had a fixed grille – and the wheel arches having a raised edge. It used the "BMC C-Series" straight-6, an engine that produced . This was actually less than the 2½ Litre Riley "Big Four" straight-4 engine it replaced. The Two-Point-Six was a commercial failure and was withdrawn from the market in May 1959, the last large Riley. Engine: Riley Two-Point-Six The Riley Two-Point-Six is an automobile which was produced by Riley from 1958 to 1959. It replaced the Pathfinder as Riley's top-line automobile when it was announced