I particularly enjoy this image as it is well framed and the lighting is near perfect. Is it a polaroid or did you intentionally rework the edges of the image to make it appear like one? To help answer the question below, gauge refers to the distance between the rails. It is of no interest to some, but to others it is of paramount interest, especially to those who would like to model what is portrayed. All in all this is a lovely portrayal of a particularly interesting locomotive. Thank you for sharing it with us.