Telescope by Galileo (replica)
1610; 1923
Replica of refracting telescope by Galileo, 1610
1610
Monocular opera glasses (Galilean type) with ivory covered gilded brass tube
1850-1910
Prospect glass
1794-1823
Combined folding opera glass telescope with hand magnifier and fob ring in silver
1825
Small pocket telescope by Dollond
Galilean refracting telescope on folding tripod
1785-1795
Ribright's Patent Spyglass and Tools, 1775-1825
1775-1825
Spyglass by Edward Nairne, 1749-1775
1749-1775
Galilean telescope
1601-1700
Spyglass telescope with shagreen covered tube
1760-1795
small telescope (prospect glass; spyglass; opera glass)
1759
Galilean refracting telescope (spyglass) with shagreen body and brass tubes by Henry Pyefinch
1763-1791
Prospect glass
1800-1810
silver-plated single-draw brass prospect glass with painted decorations showing classical figures
Six draw miniature gilt spyglass
1800-1817
Opera Glass by George Adams, London, 1750-1795
1750-1795
Brass spyglass with shagreen cover and two eyepiece powers
1700-1799
Ivory draw tube opera glass telescope
1834-1837
Spyglass, gilt mother-of-pearl, and turquoise
1801-1900
Achromatic prospect glass telescope
1795-1805
Achromatic prospect glass telescope
1809-1842
Ivory spyglass
1800-1899
miniature prospect or spyglass (Galilean)
1675-1685
Spyglass telescope, with silver plated, one-draw, brass tube
1815-1825
Non-achromatic prospect glass telescope
1774-1793
Prospect glass (spyglass)
1725-1735
1-draw telescope, by Dollond, Sheffield plate
Spyglass hand telescope with brass body and braided string grip on tube
1762-1800
Achromatic prospect glass telescope
1795-1805
Three draw miniature brass spyglass
1801-1900
Small prospect glass (or opera or spyglass)
1745-1755
Galilean telescope (spyglass) with achromatic object glass
1770-1780
Achromatic spyglass telescope with mahogany tube
1800-1850
Galilean hand-held refracting telescope (spy-glass)
1780-1790
spyglass or Galilean telescope
1735-1772
single opera glass (prospect glass; spy glass)
1745-1755
Spyglass Covered with Green Shagreen, 1751-1775
1751-1775
Non-achomatic prospect glass telescope
1790-1829
Achromatic spyglass
1701-1800
Single opera glass, ivory body covered with turned decoration
1822
Six draw miniature brass gilt spyglass
1790-1890
Achromatic prospect glass telescope
1794-1823
Brass spyglass decorated with shagreen and with an achromatic lens
1762-1800
Spyglass with shagreen tube and brass lens mounts
1700-1799
Spyglass (prospect glass), one draw tube
1725-1735
Spyglass telescope, with painted and silver plated tube
1800-1819
prospect glass (spyglass)
1701-1800
Ivory and brass spyglass
1760-1799
Ten draw silver collapsible spyglass
1804-1822