NOS rubber?

Ok, this one made me chuckle.  Not because of the asking price (he could come down a couple hundred but not unreasonable).  He's claiming NOS rubber.  In the case of NOS backglass, plastics, that's wonderful.  NOS rubber?  I'm pretty sure after 38 years NOS rubber would be dry rotted so bad it would be cracked and in pieces.  So either he's selling a pinball with a mess, or he meant that someone put on new rubber (because they still sell rubber in every size).  It looks like the latter