GeoGraph - photograph every grid square

This windmill was unusual in that the sails consisted of a series of roller blinds, connected together with canvas straps so that they could all be opened or furled together. When I first visited the mill they were still in place, but sadly were never re-fitted after the sails were repaired some years ago.
The system was used on a few other mills, mainly in Yorkshire, but was, I believe never very successful as the straps rotted and broke often.