Dover Publications Inc 1990, originally published by the
Edison Institute, 1937
pages 96 - 99
"With the coming of the typewriter and the
subsequent use of that machine in preparing stencils, the
electric pen passed from use. At one time, however, more
than 60,000 were in offices, and its use had spread
outside the United States. It could be found in many
government offices in Washington, D.C., as well as the
majority of large industries such as railroads. (...)
"The electric pen was not confined to circular
letters and the like, but could be found in restaurants
where it was used for making up the bill of fare. I well
remember buying a book on 'How to Learn to Telegraph,'
containing many different diagrams of sounders, relays,
and switches, which were all printed by the Edison
Electric Pen process.
"Then there was a comic sheet, which was circulated
by some sort of telegraphic fraternity. (((Note: this
"comic sheet" may be the earliest known "net fanzine,"
telegraphic net-gossip reproduced in hard copy with
an Edison Electric Pen.))) It was also prepared with
the Edison pen, and you would be surprised at the artistic
designs which could be produced by this little device.
"Among the treasures in the Edison collection at
Dearborn (((Michigan, USA))) is a scrapbook (...) The
book contains pictures, calling cards, letterheads,
invoice forms, menus, and many other examples of work
actually done with the electric pen back in 1875."