from the GNU version of the Collaborative International Dictionary of English
- n. An instrument used for double writing, as one for producing embossed writing for the blind and ordinary writing at the same time.
from The Century Dictionary and Cyclopedia
- n. A Swiss writing-apparatus for the use of the blind, consisting of lettered disks with mechanism to rotate them and to bring any letter desired in position to imprint it on a sheet of paper placed in the machine. It is practically a clumsy form of the type-writer.
Sorry, no etymologies found.