quixdraw wrote:
Maybe so, there was a shack I took down that had similar. Must have been an early adopter of electricity. I will say there were a lot of little white porcelain two piece clamp insulators.
I've seen both....
Never paid attention to the age of the houses.
Just know they preceded BX cable and Romex.
The two piece clamp type maybe newer as they were probably faster to install than wrapping anchor twists around the one shown in the OP.