Huh! That's pretty interesting.

I've dug around eBay (as well as Reverb and such) and I found a couple of identical models, most sellers who did indicate a model called it a 15BH. Not sure how accurate that is.

Sadly, there are no stickers left on this thing, if there were any, and there isn't a serial number underneath the metal plate either.

I'll likely give it a nice refurbishing job, though.

Thanks for the help!

The Curious Man.