
Sample of gutta percha insulated cable, 1863-7
1863-7
1863-7
1893-4
2000-100 BCE
1820
1705-1737
1820
4000-2001 BCE
1668; 1924
1990-95
1610; 1923
1642-1649 (original); 1883 (model)
1936
1846-08
1819
circa 3000 BCE
1820
1819
1819
100 BCE-300 CE; 1890-1920
2000-1350
1972-3
2000-1000
1851-1800
1819
15/7/27
15/7/27
1840-160
circa 3000 BCE
3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
1819
1820
1820
1819
circa 1830
1819
1819
1820
1819
1820
30 CE
1820
30 CE
1820
2686-2613 BCE