Interesting... I found another location in LA that still had these... somewhere in Eagle Rock. I didn't make a note of it and now I can't find it via Street View. Dang it. Got any locations on Duquesne Light? That's Pittsburgh, right? Ever see any series stuff left there? (I have a one-track mind!)

I did see traces of a series circuit in Duquesne Light territory, but couldn't say if it was still live or not.