![](https://coimages.sciencemuseumgroup.org.uk/319/216/large_thumbnail_smg00031556.jpg)
![](https://coimages.sciencemuseumgroup.org.uk/319/216/large_thumbnail_smg00031556.jpg)
![](https://coimages.sciencemuseumgroup.org.uk/383/582/large_thumbnail_smg00083789.jpg)
Ivory draw tube opera glass telescope
1834-1837
![](https://coimages.sciencemuseumgroup.org.uk/363/30/large_thumbnail_smg00052409.jpg)
Folding single opera glass, silver
![](https://coimages.sciencemuseumgroup.org.uk/319/208/large_thumbnail_smg00031548.jpg)
Opera Glass by George Adams, London, 1750-1795
1750-1795
![](https://coimages.sciencemuseumgroup.org.uk/320/513/large_thumbnail_smg00031486.jpg)
Spyglass by Edward Nairne, 1749-1775
1749-1775
![](https://coimages.sciencemuseumgroup.org.uk/383/975/large_thumbnail_smg00085043.jpg)
Achromatic prospect glass telescope
1795-1805
![](https://coimages.sciencemuseumgroup.org.uk/383/971/large_thumbnail_smg00085038.jpg)
Achromatic prospect glass telescope
1795-1805
![](https://coimages.sciencemuseumgroup.org.uk/383/656/large_thumbnail_smg00083830.jpg)
Single opera glass, ivory body covered with turned decoration
1822
![](https://coimages.sciencemuseumgroup.org.uk/319/200/large_thumbnail_smg00031540.jpg)
prospect glass (spyglass)
1701-1800
![](https://coimages.sciencemuseumgroup.org.uk/319/214/large_thumbnail_smg00031554.jpg)
novelty spyglass (prospect glass?), 2-draw tube, i
1701-1800
![](https://coimages.sciencemuseumgroup.org.uk/320/357/large_thumbnail_smg00031467.jpg)
miniature prospect or spyglass (Galilean)
1675-1685
![](https://coimages.sciencemuseumgroup.org.uk/319/211/large_thumbnail_smg00031551.jpg)
Spyglass, 1765
1751-1775
![](https://coimages.sciencemuseumgroup.org.uk/319/206/large_thumbnail_smg00031546.jpg)
single opera glass (prospect glass; spy glass)
1745-1755
![](https://coimages.sciencemuseumgroup.org.uk/383/652/large_thumbnail_smg00083826.jpg)
Single Opera Glass by Chevalier
1800-1848
![](https://coimages.sciencemuseumgroup.org.uk/383/977/large_thumbnail_smg00085045.jpg)
Achromatic prospect glass telescope
1809-1842
![](https://coimages.sciencemuseumgroup.org.uk/383/581/large_thumbnail_smg00083788.jpg)
Monocular opera glasses (Galilean type) with ivory covered gilded brass tube
1850-1910
![](https://coimages.sciencemuseumgroup.org.uk/384/31/large_thumbnail_smg00085101.jpg)
Achromatic prospect glass telescope
1794-1823
![](https://coimages.sciencemuseumgroup.org.uk/383/978/large_thumbnail_smg00085046.jpg)
Prospect glass
1794-1823
![](https://coimages.sciencemuseumgroup.org.uk/383/651/large_thumbnail_smg00083825.jpg)
Opera glass telescope
1838-1862
![](https://coimages.sciencemuseumgroup.org.uk/283/643/large_thumbnail_1938_0434_0001__0001_.jpg)
small telescope (prospect glass; spyglass; opera glass)
1759
![](https://coimages.sciencemuseumgroup.org.uk/319/207/large_thumbnail_smg00031547.jpg)
Prospect glass
1701-1800
![](https://coimages.sciencemuseumgroup.org.uk/319/222/large_thumbnail_smg00031563.jpg)
Small prospect glass (or opera or spyglass)
1745-1755
![](https://coimages.sciencemuseumgroup.org.uk/319/205/large_thumbnail_smg00031545.jpg)
Spyglass Covered with Green Shagreen, 1751-1775
1751-1775
![](https://coimages.sciencemuseumgroup.org.uk/319/186/large_thumbnail_smg00031524.jpg)
Prospect glass (or opera or spyglass)
1745-1755
![](https://coimages.sciencemuseumgroup.org.uk/319/210/large_thumbnail_smg00031550.jpg)
Opera Glass, 1775-1800
![](https://coimages.sciencemuseumgroup.org.uk/319/203/large_thumbnail_smg00031543.jpg)
Prospect spyglass telescope with shagreen tube and horn or darkened ivory lens mounts
1745-1755
![](https://coimages.sciencemuseumgroup.org.uk/319/213/large_thumbnail_smg00031553.jpg)
prospect glass (or spyglass) by J. Dollond & Son
1751-1775
![](https://coimages.sciencemuseumgroup.org.uk/383/577/large_thumbnail_smg00083784.jpg)
Black ivory single opera glass
1790-1890
![](https://coimages.sciencemuseumgroup.org.uk/384/25/large_thumbnail_smg00085095.jpg)
Non-achomatic prospect glass telescope
1790-1829
![](https://coimages.sciencemuseumgroup.org.uk/387/65/large_thumbnail_smg00085039.jpg)
Prospect glass
1800-1810
![](https://coimages.sciencemuseumgroup.org.uk/384/36/large_thumbnail_smg00085106.jpg)
Non-achromatic prospect glass telescope
1774-1793
![](https://coimages.sciencemuseumgroup.org.uk/283/652/large_thumbnail_1938_0742__0002_.jpg)
Prospect glass (spyglass)
1725-1735
![](https://coimages.sciencemuseumgroup.org.uk/319/202/large_thumbnail_smg00031542.jpg)
Spyglass (prospect glass), one draw tube
1725-1735
![](https://coimages.sciencemuseumgroup.org.uk/319/225/large_thumbnail_smg00031567.jpg)
prospect glass (spyglass; opera glass)
1745-1755
![](https://coimages.sciencemuseumgroup.org.uk/424/251/large_thumbnail_smg00185146.jpg)
spyglass (prospect glass)
1725-1735
![](https://coimages.sciencemuseumgroup.org.uk/383/650/large_thumbnail_smg00083824.jpg)
Six-draw single gilt opera glass
1820
Skeleton Opera Glass (c.1830)
1830
Miniature opera glass telescope with red leather case.
1800-1899
Single Opera Glass by Chevalier
1800-1848
Single opera glass, 1-draw tube, covered with black fishskin, with case
circa 1730
Prospect glass (spyglass) telescope in fishskin case
1730-1780
Miniature folding opera glass in case
1800-1850
Small single opera glass, imitation emerald
(Small) single opera glass
Double opera glass, incomplete
Single opera glass, with turned decorated ivory body, in red leather case
1822
opera glass telescope in case
1850-1870
Folding single opera glass with case
1830-1870