This heavy stone was used for for crushing pigment into a paste to make wagon paint. Pigment would have been spread on a flat base stone, mixed with oil or water, and ground using the muller. This paint muller was used by the donor's father, who was a wheelwright and carpenter in Braishfield, Hampshire, and may have been used to make paint for wagons.
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Mullers are hand made of solid glass for mixing paint pigments.
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