Story of Unknown Maker

Is it set neck?

You should post more pics from more viewpoints.

 

Not an Ibanez. Gotta feeling somebody made that - and did a nice job of it - in their garage/backyard workshop.

 

Looks like a Wishbass, but built by some someone with access to tools and decent wood, instead of a pocketknife and garbage.

That bridge is really unusual. I wonder if this thing is Japanese.

 

I also tend to think is was home made, though it looks like it's well done. If there are no distinguishing marks on the neck or body, what about inside the control cavity?

 

Impossible and I suspect it will always be a mystery. I would pull out the pickups and have a look inside the control cavity to at least see if there's any numbers or country of origin markings on anything. I suspect that's as close as you're going to get to figuring out what it is. Best of luck.

 

Possibly an Ibanez neck adopted to a one off body.

 

Absolutely not Ibanez. And it looks too "factory" to be a garage build.
There used to be a bunch of those on ebay from a very low-cost Chinese manufacturer, like those you find on Aliexpress. Hence, no name, serial number, etc.
I believe the hardware is Wilkinson (or Song-Il, same manufacturer) but the pickups are generic humbucking soapbars. Looks like it's passive, 1-volume 1-tone for each pickup.
Is it heavy?

 

All I can tell you after seeing that control cavity: not Japanese. For a certainty.

 

Yep, Chinese manufacture.
Tiny pots, questionable wiring, no shielding, sloppy finish in the cavity.
I take back my comment about the hardware being Wilkinson, as I think this isn't at that level.

But don't let me discourage you. If it is solid and feels good, that's most of the way there. Upgrading electronics and/or hardware can be done at any time and for a reasonable investment. The body looks solid, could be oak or a variety of ash. The real tell is going to be the neck.

 

The cavity makes it clearer: homemade.

 

Missed those while I was typing.
I'd say in all it's a good platform that is worth better controls, wiring and possibly pickups. Or play the snot out of it the way it is. But I'm 100% certain it came from a Chinese factory and isn't handmade at all.