Sending by UA3AO.
I've called this type of key a Russian Cootie Bug because the extra paddle and lever on the right functions as a type of cootie key that's used exclusively for multiple dashes.
Here's the new video:
Piero Begali says he's interested in producing a key like this. Maybe one day he will tell me a prototype is ready for me to try out.
73
DR
N1EA