I was recently going through my boxes and boxes of o gauge trains as I have decided to go tinplate and primarily Standard Gauge when I came across this train I had forgotten about. This is an O Gauge boxcab electric engine I picked up in Japan at a toy expo back around 2000-2001 when I was stationed in Japan with the Navy. I wanted to go to more shows and antique stores but the language barrier made it difficult for me to find them. Anyway, I went to this toy expo looking for o gauge trains and I saw two tinplate electric engines. This was the one I could afford so I took it as a souvenir of my time in Japan. I don't know anything about it and was wondering if anyone here has seen something like this. It has a number plate on it in four spots that says "EB 501 KTM". It looks more scale to me than comparable US versions. The lights are small and the couplers look somewhat prototypical. It appears to have a reversing switch which is the 3 position white lever on the bottom. One set of wheels is driven by a worm gear and the second set by a spring between the front and rear axles.
I'd like to try running this but how do I tell if it runs on AC or DC power without damaging it?
Thanks.