Is this a spine tester?  It has no name on it anywhere and it is very heavy duty.  probably weighs 10lbs or so.  May have some parts missing but I probably have them in with all the stuff I just aquired.



Last pic is the back side and the removable weights.
any info on this thing?
Bob Urban

Absolutely, looks like you ran into a nice treasure pile.
               Craig

Anyone know how it works?  I need to do a LOT of spine testing ASAP on all the shafts I have.
Thank you for any help.  
Bob Urban