How does this artwork elucidate its Description?
The sculpture is normally hidden within a stone plinth near Stockton-on-Tees Town Hall.  The sculpture is a stylised steam locomotive, inspired by George and Robert Stephenson's Locomotion No. 1.  At 1 p.m. each day the sculpture emerges from the plinth, moves, blows its whistle and emits smoke.  When fully emerged, the sculpture measures 7 metres (23 ft) in height, including the plinth.
Robert Stephenson Stockton-on-Tees Town Hall George plinth Stockton-on-Tees Locomotion No. 1