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Retaining clip for the Mirror for the Great Rosse Telescope

Retaining clip for the Mirror for the Great Rosse Telescope

1844-1846
Six-foot speculum [metal] mirror on travelling carriage from the Great Rosse Telescope, the 'Leviathan of Parsonstown', built by the Third Earl of Rosse at Birr, Ireland, 1844-46.

Mirror for the Great Rosse Telescope, 1844-1846

1844-1846
Six-foot speculum [metal] mirror on travelling carriage from the Great Rosse Telescope, the 'Leviathan of Parsonstown', built by the Third Earl of Rosse at Birr, Ireland, 1844-46.

Mirror for the Great Rosse Telescope, 1844-1846

1844-1846
Ring for the six-foot speculum [metal] mirror on travelling carriage from the Great Rosse Telescope, the 'Leviathan of Parsonstown', built by the Third Earl of Rosse at Birr, Ireland, 1844-46.

Ring For Speculum Mirror On Travelling Carriage From The Great Rosse Telescope

1844-1846