Exceptional Earlyish 19th Century Trigonometry Notebook with Watercolor Illustrations vintage balancing toy and initialed in marker by

and initialed in marker by its one time owner on the underside of the base

as under-appreciated today

5" diameter at the base

someone used a pencil to give her a subtle patch of pubic hair

15 1/8" l x 2 3/4" t x 1/16" thick

Exceptional Earlyish 19th Century Trigonometry Notebook with Watercolor Illustrations vintage balancing toy and initialed in marker byI've bought and sold a good handful of 19th century maths and penmanship notebooks now, and this I think is the most beautiful of the former that I've had in my possession, incorporating wonderful little ink and watercolor drawings of houses and rivers and lighthouses into diagrams applying plane trigonometry. The notebook appears to be partial, with a few pages at the end (or beginning) facing in the opposite direction, but what is here is for the