Pictures 5 Seneca Glass Company, Morgantown West Virginia Tweet 1974 SUPPLIES OF CORK USED IN POLISHING. 1974 MULTIPLE GLASS WORKING MACHINE. 1974 WORKMEN OPENING THE OVEN. 1974 REPLACEMENT POT COMING FROM THE 'WARMING OVEN'. 1974 NEW POT BEING TAKEN FROM THE WARMING OVEN. 1974 NEW POT EN ROUTE TO OVEN NO. 9.