I just wonder if you could glue something on top of that switch to give it an antique look. The rest of it is the bomb! Trust me, I’m not criticizing your pke, mine has a flower pattern on it.
As for the switch, try and find a really small knife switch or a chunky toggle that you can age appropriately. Or, add a plate connected to the switch with On and an arrow on it with the proper aging.
as I said this is very awesome. I was wondering if you could help me come up with some ideas on a steampunk ghost trap. You can message me for I dont think this is a steam punk friendly place