Writer V. L. Martin Co. Ltd., England National Institute for the Blind, London ca. In the original design, the carriage moved from right to left along a track and the braille is formed downward, just as they are produced on a slate. This model could be ordered with either the reversed or ordinary keys that produced braille as it is read.
Paper is clamped to a metal base that is hinged for storage.
Interpointing or interlining models were available. The carriage is polished stainless steel.