Since no one else answered you I will take a wild guess and say that the stamped number is probably more like an employee number for whoever built or installed the seat. I doubt that number would have a direct connection to the VIN#. I could be wrong........
Good luck though!! http://****************.com/smile/emthup.gif
Were they taken from your car? or a friends? Any identifying marks? Cigarette burns, tears, stains that might help identify them? If so you could inquire about buying them if they are for sale online. Ask about defects which (if they match) could provide more probable cause that they were stolen from you. A seat that old must have some unique mark/s on it.
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