I found this lightbulb in an attic at work a couple weeks ago. Turns out it's an aerolux light rose. According to eBay it's a vintage item from the 1940's : r/pics
Lot - Vintage Aerolux Neon Flower Bulb in Art Deco Silver Overlay Light Fixture with Glass Dome Top WORKS
Aerolux Light Corporation - Wikipedia
My grandmother received this Aerolux bulb as a baby gift in 1948. It still lights up (and you can find similar bulbs on eBay for a reasonable price). : r/BuyItForLife
1-900-VERY-FAMOUS: Aerolux Lightbulbs and an LED Liberace — Very Famous