Boxwood Tailors' Diagram Square - Rule
A miniature 6 inch boxwood tailors' diagram square.
Marked to 1/4 full size graduations on one side with full size inches on the other.
Used to make scale drawings or patterns.
Brass and steel hinge with brass tips.
Retains its brass locating pin.
A little minor staining on one of the chamfered edges.
Unmarked but identical to those offered by PRESTON.
A nice example.