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mill, Little Salkeld, Hunsonby, Cumbria, NY56673599 -- Mill bill, displayed on a french bed stone.
The bill is used to sharpen the millstone, cutting the grooves that carry the ground flour out to the edge of the mill wheel, to fall into a delivery chute. The bedstone is the lower millstone, which does not go round.
(photo 8.5.2009)