Cornish-type engine
Robinson's Shaft Engine, South Crofty Mine, Pool
Robinson's Shaft Engine, South Crofty Mine, Pool
Ainsley Cocks
Michell's Shaft or North Whim Engine, East Pool Mine
Michell's Shaft or North Whim Engine, East Pool Mine
Barry Gamble
Dorothea Quarry Engine House, Nantlle Valley, Wales
Dorothea Quarry Engine House, Nantlle Valley, Wales
Ainsley Cocks
Michell's Shaft or North Whim, East Pool Mine
Michell's Shaft or North Whim, East Pool Mine
Barry Gamble
