B67-529 PATENTED ADJUSTABLE WRENCH. Davidson. Patented by Lewis Petty Davidson and marked only with patent date February 28, 1896, like other known examples, which is incorrect; it was actually patented on February 18, 1896. 8" long, cast iron handle with sliding jaw that is locked with pivoting thumb toggle. Has some dings but works smoothly. From the collection of David Jeffers. Good 50-100