Have for auction 2 Nalco Lamp Dritherm light bulbs with coiled filaments both in their original boxes, both work, and neither look like they have every been used. Made by North American Electric Lamp Co., St. Louis, Mo. Box 5" tall, 3" wide; on front ways: 200W, G25 clear, MSS Base. . No reserve. PLEASE NOTE: I am not an expert in any sense of the word on any subject or item. I try to describe my items as well as possible and oftentimes show many photos to help bidders. Please email me before close of auction with any emails and I'll gladly answer to the best of my ability. Thanks!