An early 19th-Century 1.1/2-inch four-draw brass telescope,

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An early 19th-Century 1.1/2-inch four-draw brass telescope,
signed Thos. Rubergall Optn. to H.R.H. the Duke of Clarence. 24, Coventry Stt, London., with lens hood, dust slide and mahogany-covered outer body-tube -- 20.7/8in. (53cm.) long extended
See Illustration (detail)

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