Can I assume that it is a Hartland Model interpretation of a Heartland Interurban? Nice looking Cars, have one in bits that I was converting to match to G Scale by making the roofline a little higher. Eyed it up for a Battery Conversion and may get done as the wheels are not the best for Track Pickup though I expect that some will disagree with that view. Possibly be good to put a Sound Unit in, MyLocoSound do an Electric one that may suit?