Nice Find

[CCWKen]

Not a "rare" find but certainly a supprise, was a Jacob's No. 100 center chuck in the load of tooling I picked up. I found a few references on the net that places the value about $100. It paid (value) for the whole lot.
Anybody else have one of these or know the production dates?

[Thrud]

CCWKen:
If it is complete with the box and all the accessories it is worth more like $500.

You may want to keep it for when you need to undercut your commutators.

[Mcostello]

I've got one sitting around that I have never used. Anyone interested?