![An old engraving of a large, refracting, astronomical telescope designed by Thomas Cooke in the 1800s. It is from a Victorian mechanical engineering book of the 1880s. Thomas Cooke (1807–1868) was a An old engraving of a large, refracting, astronomical telescope designed by Thomas Cooke in the 1800s. It is from a Victorian mechanical engineering book of the 1880s. Thomas Cooke (1807–1868) was a](https://c8.alamy.com/comp/2D9DXCT/an-old-engraving-of-a-large-refracting-astronomical-telescope-designed-by-thomas-cooke-in-the-1800s-it-is-from-a-victorian-mechanical-engineering-book-of-the-1880s-thomas-cooke-18071868-was-a-british-scientific-instrument-maker-based-in-york-england-uk-he-founded-t-cooke-sons-a-scientific-instrument-company-cooke-was-one-of-the-pioneers-of-making-large-telescopes-in-britain-he-successfully-built-a-reputation-for-making-them-he-made-a-telescope-for-the-royal-observatory-greenwich-london-and-another-for-prince-albert-2D9DXCT.jpg)
An old engraving of a large, refracting, astronomical telescope designed by Thomas Cooke in the 1800s. It is from a Victorian mechanical engineering book of the 1880s. Thomas Cooke (1807–1868) was a
![Miniature monocular. Britain's Special Operations Executive developed this matchbox-size telescope for use by its commandos in World War II. (Imperial War Museums) | HistoryNet Miniature monocular. Britain's Special Operations Executive developed this matchbox-size telescope for use by its commandos in World War II. (Imperial War Museums) | HistoryNet](https://www.historynet.com/wp-content/uploads/2021/01/MHQP-201000-PORT-SIGHT-16.jpg)
Miniature monocular. Britain's Special Operations Executive developed this matchbox-size telescope for use by its commandos in World War II. (Imperial War Museums) | HistoryNet
![Anglo Australian Observatory Siding Spring NSW Australia. The UK Schmidt telescope was constructed in 1974 Stock Photo - Alamy Anglo Australian Observatory Siding Spring NSW Australia. The UK Schmidt telescope was constructed in 1974 Stock Photo - Alamy](https://c8.alamy.com/comp/B06WTP/anglo-australian-observatory-siding-spring-nsw-australia-the-uk-schmidt-B06WTP.jpg)