The piece shown above by artist Tom Bennett was commissioned to go in The Spring Arts and Heritage Centre Havant. It is a working representation of a the Hayling Billy steam railway, which operated between Havant and the holiday location of Hayling Island on the south coast for 100 years.
From the artist's web site:
The principal aim of the piece was bring to life the history of the railway in a way that would engage the imagination, particularly the young. It was to be part of a larger project designed to explore the history of the borough by means of a timeline, videos, artifacts and other interactive activities. Operated by hand and with the sounds of the engine chuffing and whistling, the train moves from past to present in a landscape filled with local history. On its way it passes tunnels, bridges, a turning windmill ending up at the seaside with bathers jumping up and down in the sea.