eights and mercury thermometer from the Castlereagh Collection for Constantinople (Turkey), and original correspondence for Constantinople and Iona
1800-1818
1800-1818
1987
1830-1890
circa 1855
circa 1855
circa 1855
1800-1818
1800-1818
1800-1818
1800-1818
1800-1818
200-101 BCE