This pulley appears to be usable after some rust clean-up. It is stamped with these marks (in separate locations): SVS, 84B2, and 1/5 8. I think that the third mark was stamped incorrectly in the factory. Since the bore is 1-5/8, I think someone stamped the slash in the wrong place. I believe that these marks indicate that the model number is SVS84B2158, which equates with the number system of current TB Woods pulleys, but I may be wrong. That model number currently sells online for ~$1,500. I'm not sure if the design has changed since this one was made.