I agree with Gary especially if the back and side covers aren't chewed scraped ok gouged not so much. 4-450 set w/tracks is pretty much the going rate for cores around here. I sold a set of these to a friend for 350, $250 is a gift.
Do you think there is any point in trying to decipher the factory tags that are attached to the seat springs on the underside?? Just trying to find a way to ensure what I have so that when I sell them the buyer won't have any complaints about their origin.
The first row of numbers on the metal tag is :
3447470 B
second row is:
CAD17 13-6-69