A live steam model of a centre pillar rotative beam engine,, 20th century

A live steam model of a centre pillar rotative beam engine, 20th century,
the copper-lagged single vertical cylinder with steam supplied via copper pipe to an inward-facing valve chest, the well-proportioned cast beam supported by an architectural style smooth column, straight-spoked flywheel with power take-off pulley gear-driven from the crankshaft, cast bedplate, Watt type governor with twin brass balls, un-machined areas finished in 'Royal Blue', all mounted on veneered wooden box plinth, 17in (43cm) wide,