This is a nice clean, antique double ended wrench marked "1140 37" on one side and "1-1/6 & 1-1/4" on the other side. The 1140 37 are standard wrench size in the J.H. Williams & Company catalog. A very heavy duty wrench. jaw are 9/16" thick. In good shape overall, some minor dings and scratches, some minor pitting noted, no rust, very little sign of use. It measures 12.0" long.