Vulgar Fractions Math Notebook with 1818 Letter from Boston dawan One of two stereoviews today

One of two stereoviews today

8 1/8" t x 4 5/8" w x 5 1/2" d

or 15 of them

Not designed by Frederick Froebel

but I think he's pretty wonderful

Vulgar Fractions Math Notebook with 1818 Letter from Boston dawan One of two stereoviews todayI know these were found together at a New England estate by the dealer I purchased them from, so I'm keeping them as such, with the letter dated 1818, and I do believe the notebook dating to about then. For me the appeal is first and foremost the beautifully ink lettered, evocative and resonant phrase "Vulgar Fractions," animated with rich red watercolor. And then of course I'm always a sucker with these antique math mensuration notebooks in general,