The display it's a 28' by 4' model of the Nantucket RR as it looked in 1910. The railroad was a 3-foot gauge commuter line that moved tourists from the ferry dock in Nantucket Town to the resort hotels in Surfside and Sconsett. About a 17 mile trip each way.
Here, on the On30 display of the railroad, engine number two, a Mason-Bogey type, is hauling a passenger car and freight van east toward Sconsett while crossing the wooden bridge over Goose Pond.
The 31' long background was made in Photoshop using pictures I took while on Nantucket, pictures from Canada and photos from the Nantucket Historical Association collection - all melded together to provide an interesting background seascape.
It'll be open for business in May if you'd like to visit.