one rod of spectroscopic standard bismuth, made by Johnson, Matthey and Company Limited, England, c. 1980 spectroscopic standard bismuth, c. 1980 circa 1980
Cuboid bottle containing 'Tabloid' bismuth subnitrate by Burroughs Wellcome & Company, London, England, 1900-1909, used by Teddy Roosevelt on African Expedition, 1909 Bottle of Tabloid bismuth subnitrate from chest used by Teddy Roosevelt. 1900-1909
