This is just crazy. I found these things at a local salvage shop and they appear NOS (I paid $20 for all of them!). The pictures do not do them justice. There is absolutely zero wear on all of the parts where you normally see wear on C-clamps. According to a little research, Cincinnati Tool was founded in 1877 and then the name changed to Hargrave Co. in 1925. Can these things be that old?

