There's a 230v carbon filament lamp made by Shelby still operating after around 108 years of 24/7 operation. I've seen it in person, it's located at the fire station in Livermore, CA.
The Shelby lamp was really designed for 230V? I thought it was originally made as 120V, but has a manufacturing defect, so run way much cooler then designed (so consequently last so long)...
I see you have medium to mogul socket
And yes I know form109 I know you like this socket since it reminds you of the Square Westinghouse socket!