Magnesia bottle Glass bottle with glass stopper containing magnesia powder. Part of <a href="https://heritage.rcpsg.ac.uk/items/show/540">19th century mahogany apothecary's box</a>. Magnesia. W.B. Hudson & Son Chemists and Druggists 27, Hay Market, London <a href="https://heritage.rcpsg.ac.uk/items/show/id/830">W.B. Hudson &amp; Son; late 19th century; chemist</a> c 1870s 2003/17.6 London, England