Can anyone tell me a time period or information about this style reflector? It appears to be dented tin or medal on back side and just a plastic like film on the front. I am guessing it was an after market hardware style purchase because it was made by MPLS Tool and Die in Minneapolis MN, but they have long been closed and there is not information on them either. I have done internet research but have never seen one like it. All are either glass or heavier plastic where this one seems that the reflection is suppose to be the dented medal and the red film just makes it appear red.