Covers from notebook, one notated for small ruling machine
Maker
Henry Joseph Grayson (b.1856, d.1918)
Date
Circa 1880
Description
Covers from a notebook, one with notations for a Small Ruling machine with duplex ratchet of 240 teeth and the screw with 40 threads per inch. Some pages missing.
Do you know something about this object?
Be the first to comment on this object record.