I guess we agree that it most probably comes from the same factory as the Guyatone range.
(click this link)There's a picture of a very similar model, same shape, fretboard, nut and bridge, but with a side mounted jack socket (rather than top mounted) and a metal control panel housing the switches only; the tone and vol. are rear mounted with the shafts through the top and only the knobs showing. I am guessing that the controls, and socket, mounted on a plate (as your is) would be a later, more economical, design. It appears in some Bells catalogues during the 1970's, listed variously as N-48 and B-1560 (these are probably Bells own "stock" numbers). The latest edition I have showing this guitar (1979) lists it as Hawaiian B-1560 at £45.00 and as B1561 (with case and stand) at £80.21. These are all badged "Columbus", but I have no doubt they would be sold with other badges through different franchises.
I'm afraid they were the budget end of the market

Tony.
PS; I tried to attach a (suitably reduced to 200kb) picture, scanned from the catalogue but got an error message "Sorry, the board attachment quota has been reached"

I will try again later, failing that - another thread perhaps? also I need to refresh my memory as to how to reduce the url to a neat word or two!