From the look of that iron, it looks grainy, is probably wrought iron. Wrought iron isn't readily available today, but I have enough that I could duplicate that wrench given some time. However, the shaping, the squareness and those hammer welds, tells me this was done by a very accomplished smith, someone that worked at it every day, and those guys started getting scarce about in the 1950s. The fact that a very good smith spent the time making it says it was very necessary to someone, and in those sizes I am guessing it was for buggy and light wagon wheel axle nuts. Could also been something in a factory, pump house or who knows what. Most of the time in the distant past, before the local hardware started carrying adjustable Coes wrenches, first a smith would make a nut, thread it, then make a wrench to fit it. It also had value to a whole bunch of people that decided to keep it down through the decades, even after the usage it was created was forgotten. It is a very interesting wrench.
