I bought a box of vintage string and tools and it contained an unusual awl. I've been stringing rackets for 40 years and haven't run across this tool. Is it used like modern "pathfinder" awls, to help push/pull strings through tight holes? The box also contained a package of four more of the wound wire tips which leads me to conclude that the tips must have been subject to some abuse - for example by forcing them into a string hole. Can anyone positively identify this tool?