Unusual and Wonderful 19th Century Set of Miniature Geometric Solids in 19th Century Signed Dovetailed Box miniature architecture and may shed a bit

and may shed a bit when moved around

There is not a whole lot out there about Renate Scheer Kalkofen (1935-2013) who created this print (a 4 color screen print I believe) in 1961

On lightweight cardstock and initialed FB very subtly at the lower right of the drawing

with an indent in the rounded top which seems as if made to meet a flat head screwdriver or coin in order to twist off the top

dates to the 1820s if not a little earlier

Unusual and Wonderful 19th Century Set of Miniature Geometric Solids in 19th Century Signed Dovetailed Box miniature architecture and may shed 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