[CW] Mecograph Video

[D.J.J. Ring, Jr.]

Nice video of Mecograph

https://scontent.fbos1-2.fna.fbcdn.net/v/t66.18014-6/10000000_259115474673110_5345558763686344229_n.mp4?_nc_cat=0&efg=eyJ2ZW5jb2RlX3RhZyI6Im9lcF9oZCJ9&oh=59b114559f2c6412ff23e4789c609a50&oe=5BC9A53B

History of the key.

http://www.telegraphkeys.com/pages/bugs/mecograph.html
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