Robert Koehler (page 23)

Part of the American gold medal-winning rowing eight, Berlin Olympics Anonymous

Statue of Robert Lord Clive and Baron Plassey, Inaugurated at Shrewsbury on Wednesday, UK, 1860 Anonymous

Robert Louis Stevenson English Photographer

Study of a leaf Robert Burrows

Rayonnement et Rotation Anonymous

Alexander Keighley Frederick Stead

Sir Robert Baden-Powell Hubert von Herkomer

Microscopic view of thyme seeds Robert Hooke

Rock Formation Above Loch Lurgainn Anonymous

Edward Robert Hughes as a Child, c.1853-4 Arthur Hughes

Robert Kermode of Port Mooar and his wife Thomas Horsfell Midwood

Portrait du Comte de Salvandy Paul Delaroche

Roses Francis Campbell Boileau Cadell

Rock Scene, Arizona, June 19, 1869 Vincent Colyer

Robert Curthose Henri Decaisne

A Yacht of the Royal Club with King George IV on Board Robert Salmon

Microscopic views of a blue fly Robert Hooke

Burns Cottage, Scotland John L Stoddard

Robert Gascoyne-Cecil, 3rd Marquess of Salisbury, British statesman and Prime Minister George Frampton

Prince Philippe of Orléans, Comte de Paris and his Brother, Robert dOrleans Anonymous

Sac or Fox brave, Rock Island, Upper Mississippi Myers and Co

Sir William Berkeley Surrendering to the Commissioners of the Commonwealth Howard Pyle

James Cooke, Postmaster at Keighley, c.1830 English School

King Robert II son of Hugh Capet composing Sequences and Responses French School

Robert Cromwell, father of Oliver Cromwell Anonymous

Robert Kett seated under the 'Tree of Reformation' receiving the King's messenger Samuel Wale

Germany - The Congo Conference in session at Berlin Anonymous

James Butler, 2nd Duke of Ormond Godfrey Kneller

Jan C. Schüller and another man on the street during the World's Fair in St. Louis (Louisiana Purchase Exposition), 1904,... Anonymous

Albert Einstein, German-Swiss-American mathematician and physicist, 1940 Unknown

Death of Robert le Fort in the Battle of Brissarthe, 866 Henri Lehmann

Robert Louis Stevenson English Photographer

'...where Saponara had been...' [earthquake damage] Alphonse Bernoud Grellier

Portrait of Jean Baptiste Colbert Robert Nanteuil

Robert Clive 1st Baron Clive, c.1773 Nathaniel (studio of) Dance-Holland

Rozelle Gates, on the road to Burn's Cottage, Ayr, Ayrshire Anonymous