Monocular opera glasses (Galilean type) with ivory covered gilded brass tube
1850-1910
1850-1910
1794-1823
1749-1775
1759
1800-1810
1751-1775
1750-1795
1795-1805
1774-1793
1725-1735
1795-1805
1834-1837
1809-1842
1675-1685
1745-1755
1745-1755
1751-1775
1790-1829
1794-1823
1701-1800
1822
1725-1735
1838-1862
1800-1848
1701-1800
1745-1755
1751-1775
1725-1735
1701-1800
1820
1745-1755
1745-1755
1790-1890
1820-1840
1800-1850
1800-1848
1730-1780
circa 1730
1850-1870
1822
1800-1899
1830-1870