Yah, but mogul-base bulbs were “obsolete” in the 90’s. Haven’t seen one for a long while (although I suppose they might be available online).
http://www.amazon.com/GE-3-Way-100-200-300-Mogul-Light/dp/B0074IJXPO
http://www.amazon.com/GE-Lighting-41459-6-300-Watt-6-Pack/dp/B0010KUUH2/ref=pd_cp_hi_0