1x500 bottle of Calomel tablets 1 grain (mercurous chloride), by C.J. Hewlett and Son, 1930-1950 Vottle of Calomel tablets 1930-1950
Glass shop round with glass stopper one third full of white mercury chloride powder (calomel). Dispensed by Pars Chemists, English, twentieth century Shop round containing mercury chloride powder