A wood and metal 'cutaway' demonstration model of a single cylinder 'A' frame rotative beam engine with cylinder, valve, rod driven, air, circulating and feed pumps, watt governor and flywheel (some old damage, some pieces missing) -- 35x42in. (89x106.7cm); and a similar model of a steeple engine with watt governor and flywheel (damaged, some pieces missing) -- 43x29in. (109.2x73.6cm)