This shop manual from the 1930’s to 1950’s shows the wrench I have listed as Indian Part Number IMC B32111X and labeled a “Monkey Wrench”.
About James Pratt
I am an Oklahoma based writer, commercial photographer, editorial photographer and adventurer based in Oklahoma City. I love telling stories about people. A motorcycle is my preferred means of travel, and I have over 5,000 hours piloting small airplanes. My editorial photography has been published in hundreds of magazines and my commercial photography has been used by dozens of companies worldwide.