Hard to find and it is a form of quick adjust. Made by Novel Wrench Co. Patented Sept 25, 1883, Patent #285,449 by Charles Wells and Charles Newlin. Neat wrench and I have one in my collection. I think it went for a fair price. Odd ball hard to find quick adjust wrenches usually bring big bucks. That one is in a little better shape then mine. I thought it might have brought more then it did. I was watching the auction.
This is the full description I have in my wrench list for this wrench.
Quick Adjust Wrench, Novel Wrench Co Philadelphia, Believed to be Charles D. Wells and Charles A Newlin of Millville NJ Patent, Patent #285,449 Patented September 25, 1883, 13 Inches Long, Not Listed, Novel Wrench Co Charter Was Declared as Lapsed by NJ in 1894 for Failure to Pay Company Charter Dues for 2 Consecutive Years