Plow. (open access)

Plow.

Patent for improvements in plows by providing “a reversible colter adapted to be applied to any style of plow; such as shovel-plows, half or turning shovels, bull-tongue, or other forms of plows. Also to provide a convenient means of attaching and detaching the plow” (lines 12-17). Illustration is included.
Date: April 14, 1891
Creator: Baker, George Washington
System: The Portal to Texas History