Coherer, with steel needle inside part-wound with copper wire, 1894-1904 Radio Communication 1894-1904
filings coherer, small glass tube with bulb at one end and cap of red sealing wax at other end, 1898 Radio Communication 1898
Filings coherer, glass tube formed into bulbs at each end at right angles, 1899 Radio Communication 1899
Bottle of Salvarsan treatment for syphilis, London, England, 1909-1914 Materia Medica & Pharmacology 1909-1914
Set of glass pipettes made by Sir Almroth Wright for use in research, London, England, 1902-1914 Laboratory Medicine 1902-1914
Copy of clay liver used for divination, original from Babylon, 2050-1750 BCE Classical & Medieval Medicine 2050-1750 BCE