View of observatory erected on St Paul's Cathedral, London, c 1821.

Interior view of Radcliffe Observatory, Oxford, 1814.

'Observatory of Collegio Romano on the church of Saint Ignazio', 1855-1878.

The Royal Observatory, Greenwich, London, mid 19th century.

The Royal Observatory, Greenwich, London, mid 19th century.

The Royal Observatory, Greenwich, London, 1914.

Jese Ramsden, English instrument maker, c 1780.

'View of the Suspension Bridge - Looking towards Beaumaris', c 1828.

'View of the Bridge now erecting at the end of the North Parade, Bath', c 1820.

Radcliffe Observatory, Oxford, 1 April 1814.

The observatory at Hartwell Manor, Buckinghamshire, 1851.

'Astronomical Observatory of the Collegio Romano', Rome, 1855-1878.