Hello, I found this at the flea, but am unable to track down any info on it. The label reads ANGLEVEL Resom Industries Beaverton Oregon Pat Pend. There are 2 metal tabs under the top plate, which I am guessing are used to hook onto a board. It was interesting looking, so I brought it home. There is a company selling a modern tool under the same name, ANGLEVEL, but I could not link the two. Any info on this tool would be appreciated. Regards, Lou