It was kind of a kit, so many people built own keyboards for it.

Published in Radio-Electronics magazine, by Don Lancaster. 1973


The one on screenshots from https://www.youtube.com/watch?v=W5d_1EqRi1U
looks to be SWTPC-KBD-1
South West Technical Products KBD-1

The keyboard also was designed by Don Lancaster himself.

It was the first keyboard that could be bough by average person.  1974


Switches and keycaps by company named Mechanical Enterprises. This what they sold
in the kit, or recommended when building from schematics.



Many hobbists complained that it didn't have a great feedback, and
bounced a bit.

No delete key, but people usually programmed one of two special keys to
do that.

For example Special + ?, (two right bottom keys), to do "rubout" (delete)


Ctrl + Semicolon for escape.


Also, weirdly keys for < >, which also had ',' and '.', were kind of inverted.
That is they were < and > by default (without shift), instead of , and .

They are in same space as modern PC keyboard, but inverted shift status.