Columbia portable

Took a quick lunchtime trip to a nearby estate sale and picked up this cool portable 78 player. I've been looking for one of these for a while now, and just missed a couple of them at a sale last weekend.

No idea what it is yet, exactly, other than the Columbia logo in the lid. It appears to be complete aside from a missing screw for the needle holder, and hopefully just needs a good cleaning and lube.