I know that N.O.S. in the auto restoration hobby means New Old Stock. I bought a pair of NOS taillight lenses for a 1970 Chevelle off of eBay. When I got them, they are in a box with bar codes and (re-)produced in Canada. I doubt that these were made in the '70's. Are they NOS? Should I take exception to the seller (which by the way, they were no bargain)?