Unusual and Wonderful 19th Century Set of Miniature Geometric Solids in 19th Century Signed Dovetailed Box handmade cat where there is a bit

where there is a bit of spotting to the paper

"Just for fun

These antique blueprints look like a pile of gorgeous old denim or calico to me

I believe they probably date to the 1910s or 20s

Unusual and Wonderful 19th Century Set of Miniature Geometric Solids in 19th Century Signed Dovetailed Box handmade cat where there is a bitMy heart skipped a beat when my eyes landed on these, the likes of which I've never seen and what could make me happier than geometric solids in miniature form?! And in a lovely 19th century slide lid box with fat dovetailed joints to boot? Plus provenance: a slip enclosed indicating they came from the estate of Doctor of Philosophy Kurt Bonstedt, a consultant in technical chemistry, with two addresses listed for him in Germany. I have not counted all