TV Typewriter Cover Unit location?

[Chuck Guzis]

Brad, I'm going to say that it will be impossible to identify the 
keyboard used from a photo.  The issue is that all sorts of computer 
equipment used gray key bodies with white letters.

For example, here's a Control DD60 console display unit:

https://en.wikipedia.org/wiki/CDC_6000_series#/media/File:CDC_6600_console.JPG

GRI (George Risk Industries) probably made a jillion gray-keyed 
keyboards for various manufacturers.  IBM used gray keys, Univac used 
gray keys, CDC used gray keys...it's pretty much impossible to say.

--Chuck