I probably would have assumed that was a sad iron heater if I ran across one, interesting little heater:)
There were still rural places without electricity into the 50's ya know...
Quite aware of that, Rusty, but for the most part, the more populated areas had commercial electric plants and/or co-ops that provided their electric. I believe that these type of hair comb and curling irons, and even pleating presses were more prevalent in the later 1800's and into the first part of the 20th century. I would even wager a guess that into the 1930's to 1950's, in the rural areas, the ladies and girls probably heated these type tools on the wood cookstove or even an old Burnside Pot-belly stove. Hell, my mother grew up in that era, and they didn't even have indoor plumbing in that house until the early 1980's. So yeah, I'm acquainted with rural living, just a tad.
That said, I will say that I appreciate being set straight, that always makes me question my motivation for even commenting anymore. I only comment, to help share what I know from personal experience growing up since about eight years old running flea market booths for my mother, learning about antique flipping, and reading everything I could about antiques since. Out of necessity, this was what we did to make a couple extra bucks in my family. Later, as an adult, I have put the same skills to use to make a couple extra bucks for my own pocket. Luckily, I retain a great portion of what I see, read, etc.