Complete Galt Playplax 1983 Design Toy Set - Squares and Rings copper finish I don't know who BL

I don't know who BL is or was

14 1/2" tall x 11 1/2" wide x 3 5/8" deep and in good vintage condition

one end of which one would put under one's foot while holding the other straight up

It's definitely quite old but the bristles are in terrific shape (I am always amazed at how the straw on these old brushes holds up forever)

Each accommodates a photos of up to 3" x 4

Complete Galt Playplax 1983 Design Toy Set - Squares and Rings copper finish I don't know who BLI had a set of these Galt Playplax pieces when I was a kid, and I swear not a week goes by that I dont think of them. As a child, there was something super magical about them, and I remember spending hours building with them, then peering through the kaleidoscopic towers of rings and squares I'd constructed, studying how the colors merged and the shadows they cast (I recommend using these on a white table!) Now that I have a set in hand some 40 years