Satisfying Old Brass Pin Drill Gauge handwoven basket I really don't know anything

I really don't know anything about this one

completely readable

producing jewelry boxes

28 pages plus endpapers

more aged and worn than the others

Satisfying Old Brass Pin Drill Gauge handwoven basket I really don't know anythingI believe this small brass gauge would have been used for measuring pin drill (pin vise) bits; pin drills are like miniature drills, used for precision work by machinists or jewelers, etc. This is a fairly old one, with just the center row of holes stamped: 0 10 in progression, the largest number for the smallest hole. The shape of it when I first saw it made me think of a hornbook (a small paddle of sorts, usually bearing an alphabet, used for