In 1981 I inherited a box of what appears to be a complete set of a Pennsylvania RR N scale model train. Most pieces are brown in color. One steam locomotive and coal car is black. Every single piece is still in its original box; the train was never put together. There are different locomotives. Some of the labels say "powered". The manufacturers are different; the purchase labels indicate they were purchased separately from different sources (hobby shops, model rr supply places, etc.) Names on the boxes are Con-cor, Atlas, Bachmann, Ahm, and Minitrix (West Germany). There are locomotives, different types of passenger cars, mail cars, box cars, flat cars, etc etc and at least one caboose. Can someone tell me what I have? Does anyone know about Pennsylvania RR N scale models made in the 1970s that were brown in color? I have been storing this box faithfully for 24 years. I would like to know more about what I have; I do not know anything about model railroads. I have a 5 year old grandson, but I don't think these items were made for small children. They seem to be precision-made for adult model rr hobbyists. Thank you kindly for any information you might have.