Help identifying 1970s computer/keyboard in classic doctor who?
This is driving me a little crazy. This device shows up in at least 3 classic doctor who serials in the late 70s and early 80s (warriors gate, logopolis, and warriors of the deep) and I thought it was really lovely and wanted to try identifying what it was but no matter how hard I try I just can't seem to find it. I know it's a keypunch machine layout like the ibm 029, and I know ibm, Sperry, and a lot of other manufacturers used these black and blue keycap colors, although I can't find any device of any kind with this combination of blue alpha keys and black modifiers. It's sort of similar to a color inverted version of an old Cortron 55% keyboard, but I think it's way too massive to be just a keyboard anyway. I've put in a diagram of the layout (wrong colors of course) and pics of the ibm 029 and the Cortron for reference. Does anyone have any idea what this might be?