I had never seen this one before. It is a Reishauer No. 2A. It doesn't say it, but I am guessing German?
Jim
I didn't see you buy that one. Nice condition.
Not from the auction. I was taking pictures and it jumped in.
Jim
there was a Reishauer #4 with a top adjuster sold as lot # 296 at York, Nebraska's
Don Ervin's wrench collection, April 18-19 2008 it was 18" long.
that name Reishauer shows up on search as a gear grinding machine company in Elgin, Ill
but I also think that it came from overseas.
Found a REISHAUER at http://www.holzwerken.de/museum/hersteller/marken.phtml
Reishauer = Reishauer-Werkzeugfabrik G.m.b.H., Rastatt, Baden
It almost looks like a caliper....cool wrench
The style of the logo reminds me of german MAUSER as seen on measuring tools.