Grant Erwin wrote:

I have located a 30" sheet metal slip roll in my general area. It's about
2 hours away by car. It isn't new, looks to be solid old US. I have only
seen one photo.

If the size fits your needs, why not buy it?
The rust will go away and you will find its capacity when you try to roll
something too big and the rolls are bent afterwards. :-)
Seriously, finding slip rolls in the same size and comparing the roll's
diameters you will get a ballpark. And old iron is always better than
Chinese cast iron with 30% sand in it.


Nick
--
The lowcost-DRO:
http://www.yadro.de