Observation posters & prints

The old observing-room, Greenwich Anonymous

Taking Observations with a Sextant Andrew Pitcairn-Knowles

Observations Upon Stilts English School

First Navy Observation Balloon Anonymous

Temporary observatory for pendulum observations, Sumatra unknown

Model intended to show error adjustments in zodiacal light observation Charles Piazzi Smyth

Observation officer and signallers keep a sharp lookout, St Quentin, France, World War I Realistic Travels Publishers

Amudsen and Partner Making Observations Anonymous

Observations on certain curious Indentations in the Old Red Sandstone of Worcestershire and Herefordshire, considered as the tracks of antediluvian... Anonymous

Observations on the Neilgherries, Neelgiries map Anonymous

Darwin's Bird Observations English School

Grey drone-fly, observation XXXIX from Hooke's Micrographia, 1664 Robert Hooke

Toughtful observation, 2018 Patricia Brintle

Skyway and Observation Towers at Century of Progress Anonymous

Children taking meteorological observations, Shrewsbury House Open Air School, London, 1908 Unknown

Observation Car of the Coronation Anonymous

Observations on the Neilgherries, map of the route from Madras to Ootagamund Anonymous

Temporary observatory for pendulum observations, Sumatra unknown

Birdie reading observations on the Ramp, June 6th.11, 1911 Edward Adrian Wilson

Taking Observations in a Blizzard Edward Adrian Wilson

Lovers observed George Morland

Kater's invariable pendulum and clock for gravity observations, Sumatra unknown

Observing a total solar eclipse, 1851 (1857) Anonymous

Paris Observatory, France, 1740 Unknown

Observing a solar eclipse, 1673 Unknown

Observer of a kite-balloon testing the telephone before ascending Anonymous

Artillery observation officer in forward post, France, World War I Realistic Travels Publishers

Observer listening post Associated Newspapers

A look-out on the bridge of a British warship Gregory & Co

Observer's Mate WA & AC Churchman

An Indian spy observes the arrival of a Spanish ship on the Mexican coast, 1579 Diego Duran

Observation of Yellow Fever, c.1819 Charles Lasteyrie du Saillant

Observers, 2011 Vincent Alexander Booth

Commander Evans observing an Occulation of Jupiter Herbert Ponting

'Observation post of General Mangin, 18th July 1918', Villers-Cotterets, Aisne, France Francois Flameng

Commander Evans observing an Occulation of Jupiter, Antarctica, 1910-1912 Herbert Ponting