Preserved post mill at Lignerolles, France, 1981: detail of Berton striking mechanism for sails
Detail of sails and striking gear, Jill Mill, Clayton
Last working sail, Milton Common Mill, Great Haseley
Part of last working sail, Milton Common Mill, Great Haseley
Cromer Mill, Cromer; detail of shutters and striking gear
Detail of sail, Heage Windmill, Heage
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
Detail of mechanism of spring sail, Balsall Heath Mill, Berkswell
Detail of sail with aerofoil, tower mill, Over
Detail of sail, Oldland Windmill, Keymer
Sail springs, Oldland Windmill, Keymer
One of last working sails, post mill, Ramsey
Detail of sails, Jill Mill, Clayton
Jill Mill, Clayton
Detail of spring sails, tower mill, New Bradwell
Control mechanism of spring sail, post mill, Nutley
Spring sail, post mill, Nutley