Possible Windmill, Lammas Hill

1 Photograph of windmill.
2 The photograph shows a conical brick tower, capped with an ‘onion’ dome, with four sails to be covered with canvas. There is no fantail visible, and the mill would have been turned to face the wind by hand. There is a large wheel (presumably a hoist) projecting out of the cap, surrounded by a ballustered platform. There is a large platform projecting from the mill tower, supported on struts. The picture shows a brick and slate out outbuilding nearby. The whereabouts of the mill are not known exactly, the grid reference given is that of the tumulus (WA 3140) which when excavated was pronounced a windmill mound, but the photograph does not suggest that the mill was built on a mound.
3 No other trace of windmill – is the photograph wrongly labelled?