Unusual and Beautiful Old Handmade Ruler (?) antique diagams I love everything I sell

I love everything I sell

Not a great painting

and I believe this one is most likely Klickitat

presence and absence--and that little puppy is pretty great

Unusual and Beautiful Old Handmade Ruler (?) antique diagams I love everything I sellI really don't know anything about this one, but found it at Brimfield and couldn't put it down. I presume a ruler or guide of some sort, with the increments along one side approximately one inch and the shorter ones about half an inch. For me the angled lines really make it. lending a sense of movement and three dimensionality to the whole thing, and the wood, which I think may be boxwood, is lovely. With what looks to be some faint handwritten text