C. 1800 Oversized Engraving on Laid: Microscopical Objects antique wooden carrying case Filling it is a curious

Filling it is a curious mix of geometrical diagrams

Shortest 3 1/2" long

it occurs to me

Signed in pencil on the back: painted by M

It took me a little help to figure it out

C. 1800 Oversized Engraving on Laid: Microscopical Objects antique wooden carrying case Filling it is a curiousOne of three engravings I am listing, c. 1800 or so I believe though perhaps a bit earlier, all from the same volume, which I have not identified. As someone who spends the warmer months endlessly checking the dog as well as myself for ticks, I couldnt resist this one, with magnified views of dog tick and little black tick, as well as the flea and the louse and the itch and the mite and the gnat, etc! Plus the delicacy of those tendrils at center, so