Rare Antique 1955 General Electric 750 W Light Bulb Bonus Line Demonstration Kit

  
GENERAL ELECTRIC 750 WATT LIGHT BULBS BONUS LINE DEMONSTRATION KIT. I couldn't find it anywhere. I'm pressing these thus, because I don't know if they are rare or valuable or what? You're more than welcome to make an offer. You are more than welcome to give me information on these. They are probably 10 inches high by about 6 inches in diameter. I have not tested the bulbs.

I got the date from this advertisement in the last photo. This advertisement does not come with the kit, but just for a reference.