At the now-departed Boston Engine Terminal. It's now an empty carbody at N. Conway, NH, but painted and in good condition. It was first acquired by a private owner, who had it trucked to his property, but wisely gave it up to a good home after a short time:http://photos.nerail.org/showpic/?photo=200511082026269193.jpg&byrail%3A2%3ABoston_&_Maine

What a neat picture. I think I see the beam from the headlight illuminating a very narrow shaft of exhaust or dust particles...Quite nice.