James M Beale's 1853-57 Math Notebook, Chock Full first aid book and two of the original

and two of the original three pins remain in tact to lock it in place when folded up

with steel wrapped ferrule

This one I believe dates to the Meiji period (1868-1912) and features silver hinges on the back and locking mechanism on the front

then pull the lever up and his eyes pop out

James M Beale's 1853-57 Math Notebook, Chock Full first aid book and two of the originalThe cover and first few pages of this notebook are pretty rough, but it gets better and better as one turns the jam packed pages, including beautiful writing and gracefully meandering equations, all sorts of wonderful little doodles and flourishes, and best of all gorgeous watercolored headers. And over and over again James M. Beale has signed and dated the pages, in a wide variety of ways. I'd be very inclined to carefully remove and frame a handful