I'm looking to buy a replacement bulb for my integral rearview mirror/spotlight for my '50 Roadmaster. The original 6v bulb has "Sealed Guide Spot" on the little bulb inside it. Does anyone know of a company that makes a replacement bulb. It is 5" in diameter and is 6v. I could use a 6v or could make a 12V work also. I'm hoping that some of you Classic Buick owners have had to replace them sometime previously and have one or know of a company that makes a replacement. I've already checked on Hemmings for NOS, but they cost a bunch of money. Any assistance would be greatly appreciated. Thanks, Steve.
