細節
A simple metal display model of a four pillar 'A' frame atmospheric beam engine
with small bore enclosed cylinder, valve chest and steam ways, valve actuating and pump rods, weight and dummy bucket and lift pump, the beam supported on four disc columns, finished in blue, metal bed and wood base -- 9½ x 9in. (22.8 x 22.8cm.)
with small bore enclosed cylinder, valve chest and steam ways, valve actuating and pump rods, weight and dummy bucket and lift pump, the beam supported on four disc columns, finished in blue, metal bed and wood base -- 9½ x 9in. (22.8 x 22.8cm.)