Unusual and rare adjustable Hall Wrench w/1894 patent

This is a rare adjustable Hall Wrench that has a patent date od March 13, 1894. It measures 5 and 1/2" long and looks to be nickle plated. It has the name and patent date molded on the handle and 4 lines marked on the jaw in 1/8" increments with the 1/4" and 1/2" being stamped. This is a great looking old wrench but there is some wear from use. The jaws are closed together and are so tight I could not get it to open. There looks to be some minor rust between the jaw and the handle. That might be what is holding it tight but I didn't wat to mess with it.

Please email any questions.

Thanks for looking!