Hello, I found this yesterday at the flea. Overall length without tool in jaws is 6". The knurled barrel turns, and opens & closes the jaws to hold the tools. There are 8 tools under the end cap, the usual asst. , awl, screwdrivers, chisel, gouge, tack puller. No visible markings anywhere. I am trying to find out what I can about this tool, manufacturer? patent info? end user? . The jaws do not close fully, and I am wondering about the other openings in the jaws, they are too large to hold the included tools. Regards, Lou