Primary Colors Old Wooden Stacking Rings Toy painted wooden duck Based on similar examples I

Based on similar examples I have seen

which is when in my theory would guess she did this

And then a hole at the center of the lid for pulling through the string that it would have held inside

5 1/2" tall x 3" across at lip

But this I think is even more spectacular--a manuscript known as a "commonplace book

Primary Colors Old Wooden Stacking Rings Toy painted wooden duck Based on similar examples II believe this old wooden stacking toy is very early Playskool 1940s or so I think, and a pretty rare one with this square base. I like its simplicity, the flat sides of the rings, and its Mondrian esque primary color scheme, which makes it feel all the more like a small modernist sculpture. Plenty of wear and some paint loss around the edges especially, all to the good in my opinion, and super sturdy. 5 1 2" t x 3 5 8" w. Rings are 3" in diameter.