Ptich-Board. (open access)

Ptich-Board.

Patent for pitch-board that is "an instrument adapted for use by carpenters and others, the same being so constructed as to serve as a rule, a square, or angle, and adapted to be arranged for indicating accurately any inclination or bevel that may be desired, and finally that is capable of being folded" (lines 6-12).
Date: November 13, 1894
Creator: Frasier, William E.
System: The Portal to Texas History