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Hall Braille Writer (1891) 2: captiondetails

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Hall Braille Writer (1891) 2: caption

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Hall Braille Writer (1891)
Mfg. by Harrison & Seifried, Chicago, USA

The Hall Braille Writer was the first universally successful typewriter for the blind, producing embossed dots that the operator would read with their hand. Up to six dots could be embossed onto the paper at once to create the characters. The middle key is for spacing.


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Canon EOS Digital Rebel XTi / 400D / Kiss Digital X
Lens: 17 - 85 mm (35 mm equivalent: 27.5 - 137.6 mm)
Focal Length: 30mm
ISO: 200
Aperture: f/4.5
Exposure Time: 0.125 seconds
Exposure Program: Program AE
Flash: Off, Did not fire
Picture Style: Faithful
Date: 2008:07:19 10:18:34


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