Hi All, I'm a lapsed member who's been lurking for many years, but I just had to log in and respond to this thread. I am almost certain that this is an HOn30 kit from the 70's or early 80's, meant to be built over the Bachmann N scale Dockside 0-4-0. I would have given anything to find one of these back in the day, but I had to build my number 8 from scratch instead, all good fun of course! At the time this kit was made, HOn30 was the prevalent scale/gauge for 2 foot narrow gauge models, thanks in great part to the wonderful models and articles put together by Bob Hayden and Dave Frary. Of course, there were pioneers of Maine 2 foot gauge modelling before that: Hugh Boutell, Dick Andrews and Bob Brown all scratchbuilt amazing O scale models in the 40's and 50's, and Bob Brown built his famous Wiscasset waterfront module in the early 60's. I digress, this is a great little etched brass cab and tender, but I do hope whoever buys it realizes that it will almost certainly be HO scale.