[GreenKeys] The Morkrum Telegraph Printer

[Jim Haynes]

I see that there is a free ebook version on that web page, but I don't
see how to get a copy of it in something like pdf that I can use.

A note to all this is that Armour Institute is what became Illinois
Institute of Technology.  A great many of the engineers at Teletype Corp.
were graduates of Armour.  Frank Pearne who was the original instigator
of the company taught at Armour after leaving the employ of Morton.
Howard Krum who was one of Morkrum's most important inventors was a
graduate of Armour, and may have been taught by Pearne, but I don't know.
And it was Howard Krum who wrote the article in question.