Isorex 7 inch glass suspension with a 7/8 inch ball. "The VCR on the cap of the ISOREX is probably Verreries Charbonneaux Reims. Reims being the city the factory is located. They are still there making bottles. Verreries Charbonneaux is the company name, ISOREX is the "trade name". I am not sure if Verreries Charbonneaux had a foundry for making the caps at the Reims site. " Lis