

Please help me identify what kind of bulb I need!
I ordered these wicked cool sconces from a maker in Russia in the early days of the Pandemic. We just finished electrical work on our dining room and went to find some bulbs to fit, and no US bulbs are cutting it.
I've attached a couple of images - the measurement of the top of the socket is about 23/24 mm. I've tried doing some internet research myself, but I can't seem to find anything that seems correct. Any help is extremely appreciated!