Oahu HG 306c steel guitar Info?????

[mentally-challenged]

Howdy all,

My grandfather left me this Table model Oahu Steel guitar HG 306c. I
have played a little regular guitar in the past, but this is a new
world to me. I can not locate this guitar anywhere on the net and was
hoping to get some info on how to at least fool with it, maybe even
play it. It has switches on it "MC1" and "MC2" as well as volume knobs
etc. Has anyone heard of this particular model, or know where I can
find a manual for it. It looks older so I may be out of luck. Any help
appreciated.