Yea I think you are right, I've searched quite a bit and this is the only thing close. Do you know what exactly was this used for? Input to a punchcard computer or printer.
I'm guessing that it was used as mainframe input, but perhaps in a smaller mainframe. Seems like Univac's larger ones used keyboards integrated into desks. Hopefully other people with more knowledge will chime in.
There are old catalogs that you can search through if you desperately want to know what system it came with: