I saw this very wrench at our corporate campus display area. This tool was designed in the 50’s and called a “Carman’s wrench”. We had railroad dedicated reps for a long time that called on the rail road industry. This wrench was a pocket wrench with varies sizes for multiple functions, each...
I bought an old tool box with old tools in it and found this old wrench so i wiped it off and cleaned it up and discovered that this strange tool was a snap on. I found the dating symbol on it and was made in 1951. The numbers on the wrench is M-4431-A. I think it is a military issue because I...