July 2013 Mystery Tool A
Unidentified, but one reader believes it to be a device to lead a bull or hog by the nose. Photo submitted by Wilbur Kaufman, Phoenix, Ariz.
July 2013 Mystery Tool B
Window frame bracket. Photo submitted by Erwin Fullerton, S. Woodstock, Vt. See patent 617,164.
Editor's note: Despite the difference between the patent illustration and the photo, the patentee and patent date are a perfect match. Design changes were a regular part of the process between patent drawing and production.
July 2013 Mystery Tool C
Can opener/knife sharpener. Photo submitted by Jon Howard. See patent 1,770,418.
July 2013 Mystery Tool D
Unidentified. Photo submitted by Mike Intlekofer, Bellevue, Wash.
July 2013 Mystery Tool E
Bottle opener/corkscrew/muddler (the corkscrew is hidden inside the handle). Photo submitted by Mike Intlekofer, Bellevue, Wash.