Observation among posters & prints

Narrative of a Voyage of Observation among the Colonies of Western Africa and of a campaign in Kaffir-Land in 1835 Major C. C. Michell

Tornado, Narrative of a Voyage of Observation among the Colonies of Western Africa and of a campaign in Kaffir-Land in... Major C. C. Michell

Buffaloe Heights, Narrative of a Voyage of Observation among the Colonies of Western Africa and of a campaign in Kaffir-Land... Major C. C. Michell

Taking Observations with a Sextant Andrew Pitcairn-Knowles

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

Temporary observatory for pendulum observations, Sumatra unknown

Observations Upon Stilts English School

Toughtful observation, 2018 Patricia Brintle

Eight Bells - Midday Observation Winslow Homer

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

The old observing-room, Greenwich Anonymous

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

First Navy Observation Balloon Anonymous

Temporary observatory for pendulum observations, Sumatra unknown

Taking Observations in a Blizzard Edward Adrian Wilson

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

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

Plate XXXVIII from Campi Phlegraei: Observations of the Volcanoes of the two Sicilies Pietro Fabris

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

Skyway and Observation Towers at Century of Progress Anonymous

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

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

Canadian Observation Post, 1919 Colin Unwin Gill

US Observation Planes Flying in Battle Formation Anonymous

Among The Brigands, The Victim Under Cross-examination Anonymous

ARP officers in an observation post during the Blitz reporting on fires probably caused by incendiary bombs Anonymous

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

Among the Trees John George Brown

The American Centennial Exhibition, 1876: President Grant And The Emperor Of Brazil Starting The corliss Engine In The Machinery Hall Anonymous

1930s family with grandparents & conductor on broadway limited observation car train platform waving goodbye & farewell Anonymous

Frontispiece to the 2nd Edition of Lord St[anhop]e's Observations on Mr. Pitt's Pl…, May 29, 1786 James Sayers

Jaipur Observatory Lincoln Seligman

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

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

Swan Theatre in 1596 (from Johannes de Witts Observationes Londinienses), 1596 Anonymous