Brill Windmill, Brill
Old sail on ground, Hoyle's Five Sailed Mill, Alford
Green's Windmill, Sneinton, Nottingham
Wheatley Windmill, Oxfordshire
Control mechanism of spring sail, post mill, Nutley
Spring sail, post mill, Nutley
Detail of spring sails, tower mill, New Bradwell
Jill Mill, Clayton
Detail of sails, Jill Mill, Clayton
One of last working sails, post mill, Ramsey
Detail of sail, Oldland Windmill, Keymer
Sail springs, Oldland Windmill, Keymer
Detail of sail with aerofoil, tower mill, Over
Striking gear spider and linkage
"Framing of sails"
Detail of mechanism of spring sail, Balsall Heath Mill, Berkswell
Detail of spring sails, post mill, Mountnessing
Detail of mechanism of spring sail, post mill, Mountnessing
Detail of spring sail, post mill, Mountnessing
Detail of mechanism of spring sail, post mill, Mountnessing