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
1x500 bottle of Calomel tablets 1 grain (mercurous chloride), by C.J. Hewlett and Son, 1930-1950 Vottle of Calomel tablets 1930-1950