hello, I'm a new member and I'm wondering if anyone can help. I bought a house a few years ago and inside i found an interesting flashlight. It was made in Germany, the back cap reads CRONE focus made in germany. There is a sticker on the side that reads, Struthers Wells Titusville-Warren Pennsylvania I assume that's where the light was bought. Here's the cool part. it changes color, stamped on the side it says Tricolor U.S pat pending. It takes 2 D sized batteries if that helps you determine the size (about 10 inches long). There are 3 sliding switches on it one turns the light on, another slides a green sleeve over the bulb and another one slides a red sleeve over the bulb turning the flashlight into almost some kind of traffic signal . My question is does anyone know how this light was used? I could assume Police could use the signaling but the light isn't that bright to be used as a night time finding criminals type of light, maybe the railroads but again it's not that big to signal a train. How old is this dam thing and are lights like this still being made. If photos would help I can take some pictures and post them as well if you need to see it better...... Thanks for any info you have.