The Transit Room at Hartwell Manor, Buckinghamshire, 1851.

The first balloon crosing of the English Channel, 7 January 1785.

Ada King, Countes of Lovelace, 1840.

Ships signalling to each other at night by firing cannons, 1769.

'Bramah's improved Patent Fire Engine', 1805.

Making heavy forgings, Grimesthorpe Steel and Ordnance Works, 1914-1918.

The Metropolitan Underground Railway, 1863.

Hydrographic map of the Persian Gulf, 1712.

'Descending the Shaft at Wielliczka', 1869.

'The March of Intellect' - 'Lord, how this world improves as we grow older', 1829.

A medieval missionary finds the point where sky and earth touch, 1888.

March Northern Midnight Sky in London