Glass bottle with a glass stopper that is covered with a piece of leather with string wrapped round. Grey powder inside. Handwritten label reads "Grey Powder". Second label has printed company name "Twinberrow, Dispensing Chemist." Savory 1836, p.58-59: “Mercury with Chalk (Grey Powder). An alternative [MH: supposedly for the previously listed mercurial/blue pill?], and is occasionally given to correct the biliary secretion in children, and especially to increase it when deficient in quantity, and when the stools are clay-coloured or white. The extreme mildness of this mercurial, generally requires that its use should be continued for some time. In some cutaneous affections of children, this mercurial preparation merits attention as a mild and safe alternative. The dose for an adult may be from five grains to half-a-drachm given twice a-day, mixed with honey or any viscid fluid.”