Copy of clay liver used for divination, original from Babylon, 2050-1750 BCE Classical & Medieval Medicine 2050-1750 BCE
Casts of Chinese zodiac figures (Tang dynasty) Asian Medicine 1871-1900 (copy); 618-907 CE (original)
Thomas Crapper's valveless waste preventer, no.814 cistern, c.1900 Thomas Crapper's valveless waste preventer, No.814 Domestic Appliances 1900