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Letter from John Heaver about his claim to have discovered cobalt, also about Mr Hart, with certificates and envelope
Letter from John Heaver about his claim to have discovered cobalt, also about Mr Hart, with certificates and envelope
Letter from Sam Howard about samples of cobalt which he has sent to the Society, also about copper
Letter from Sam Howard about samples of cobalt which he has sent to the Society, also about copper
Letter from Sam Howard about the ore in the mines and also about his cobalt discovery
Letter from Sam Howard about the ore in the mines and also about his cobalt discovery
Letter from Charles Powell about cobalt
Letter from Charles Powell about cobalt
Letter from Francis Beauchamp about cobalt
Letter from Francis Beauchamp about cobalt
Letter from Charles Moreton, Nicholas Crisp and Frederick Brandenburgh about cobalt
Letter from Charles Moreton, Nicholas Crisp and Frederick Brandenburgh about cobalt
Letter from George Best about cobalt
Letter from George Best about cobalt
Letter from Dr Stephen Hales about cobalt
Letter from Dr Stephen Hales about cobalt
Letter from J Peat about cobalt
Letter from J Peat about cobalt
Letter from J Peat about cobalt
Letter from J Peat about cobalt
Letter from Emmanuel Mendes Da Costa about cobalt and other minerals
Letter from Emmanuel Mendes Da Costa about cobalt and other minerals
Letter from Andrew Reid about cobalt
Letter from Andrew Reid about cobalt
Letter from Harry Hart about cobalt
Letter from Harry Hart about cobalt
Letters from John Heaver about his discovery of cobalt (certificate signed by Josiah Wedgwood, Etruria, 4/4/1817)
Letters from John Heaver about his discovery of cobalt (certificate signed by Josiah Wedgwood, Etruria, 4/4/1817)
Letter from John Heaver about his discovery of cobalt
Letter from John Heaver about his discovery of cobalt
Printed notice offering a gold medal 'To the author of the best essay on the natural history of cobalt'
Printed notice offering a gold medal 'To the author of the best essay on the natural history of cobalt'