Variously Painted Vintage Geometric Solid Blocks folk art cabin I don't know much about

I don't know much about it but that it appears to be pretty old and is

I believe this is fused glass

Opening measures 8 5/8" x 6 1/2"

but does not show the same length on the interior and condition is stable

Very well used but with many years of hard use left in it

Variously Painted Vintage Geometric Solid Blocks folk art cabin I don't know much aboutThese came from the estate of a medical iIllustration professor, who used them for some of his drawing classes, which is why some are painted white and gray. There are two different white paints most are painted what I would call gallery (or pedestal) white, and a couple of the eggs a much thicker, glossier, creamier white. In my dreams I'll find a gorgeous antique set of geometric solids; these are not that, but they are very fun to play with, and