i picked this up this morning,,interesting design,,no wheel,just a flat metal leaf type spring,press down and it slides.
works really well...marked wright wrench, tacoma wash.pat,d 15-04.. so i guess its from your side of the ocean.
its 10 inches long.

Nice pickup, benjy.

I've never seen one by Wright. I presume it's not the same company who currently make industrial tools and are based in Ohio...

That's a nice one! I have a metal-handled one, but I've never seen a wooden-handled one.