I have a Datong Morse Keyboard with manual. I am trying to find it a good home for a fair price.
My only improvement was to replace the battery holder for the AA batteries as the original one's plastic disintegrated.
The to doesn't have Keys, just a membrane so stuff can't fall in.
If I can edit this post I can upload a photo later.
I have googled and googled and not found any hits for this. So if you are a Datong collector, this is an opportunity to get something no longer available.
73,
Paul
K7NHB