BLW3493762: Nude on a Chaise Longue, 1950s (pencil & wash on paper), Grant, Duncan (1885-1978) / Bridgeman Images

HOU3493766: German dug-out in Mametz Wood, Autumn 1917 (b/w photo) / Bridgeman Images

HOU3493781: British soldiers making hay while away from the front, Flanders, 1914-18 (b/w photo) / Bridgeman Images

HOU3493785: Waiting to attack on the 25th, Western Front, 1914-18 (b/w photo) / Bridgeman Images

HOU3493790: Women's Army Auxiliary Corps cooks prepare a meal for British soldiers on the Western Front, France, 1914-18 (b/w photo) / Bridgeman Images

HOU3493793: British artilleryman opens a care package from home, Western Front, 1914-18 (b/w photo) / Bridgeman Images

HOU3493794: British officer stops by the roadside for lunch, Battle of the Menin Road, Flanders, September 1917 (b/w photo) / Bridgeman Images

HOU3493796: Members of the Women's Army Auxiliary Corps repair an officer's car, Western Front, 1914-18 (b/w photo) / Bridgeman Images

HOU3493803: British soldiers atop a captured German observation post, Western Front, 1914-18 (b/w photo) / Bridgeman Images

HOU3493809: Former British Prime Minister Arthur Balfour visits the Western Front and spots an aeroplane, 1914-18 (b/w photo) / Bridgeman Images

HOU3493810: Making a road through captured ground, France, 1914-18 (b/w photo) / Bridgeman Images

HOU3493811: Men repair an artillery piece in an ordnance workshop, Flanders, 1914-18 (b/w photo) / Bridgeman Images

HOU3493815: British troops struggling in the mud, Flanders, 1914-18 (b/w photo) / Bridgeman Images

HOU3493818: View of Thiepval from an old German trench, France, 1914-18 (b/w photo) / Bridgeman Images

HOU3493820: One German PoW offers drink to another after their capture by British forces during the Battle of the Menin Road, Flanders, September 1917 (b/w photo) / Bridgeman Images

HOU3493822: British soldier laid to rest on the Western Front, 1914-18 (b/w photo) / Bridgeman Images

HOU3493823: German prisoners bringing in the wounded during the Battle of the Menin Road, Flanders, September 1917 (b/w photo) / Bridgeman Images

LGM3483573: Young Buddhist monks, Simtokha Dzong, Buddhist monastery, Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483587: Buddhist monk in Punakha Dzong, monastery, Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483591: Bhuddhist monk in doorway in Simtokha Dzong, Buddhist monastery, Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483600: Pilgrim travellers carrying holy scriptures, Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483608: His Majesty Jigme Singye Wangchuck, King of Bhutan, Bhutan, Himlaayas (photo) / Bridgeman Images

LGM3483611: His Majesty Jigme Singye Wangchuck, King of Bhutan, Bhutan, Himlaayas (photo) / Bridgeman Images

LGM3483612: His Majesty Jigme Singye Wangchuck, King of Bhutan, Bhutan, Himlaayas (photo) / Bridgeman Images

LGM3483615: Bhutanese Kings Tomb, Thimphu.Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483624: aerial view of Paro Valley and Bhutanese houses, Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483633: Bhutan amongst the clouds in Himalaya landscape, (photo) / Bridgeman Images

LGM3483649: Bhutanese woman agriculture worker, Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483651: Buddhist monk at Punakha Dzong, Bhuddhist monastery, Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483655: Bhutanese in embroided traditional costume at Paro festival, Paro, Bhutan, Himalayas (photo) / Bridgeman Images

LGM3483656: Department of Bhutan Forestry poster, Bhutan, Himalayas (photo) / Bridgeman Images

KOX3483660: Keble College Oxford, Association Football XI, including David (later Reverend) Railton, (seated, second left), founder of the Tomb of the Unknown Warrior, Westminster Abbey, 1908-09 (b/w photo), English Photographer, (20th century) / Bridgeman Images

MOU3483853: Exterior of a portrait miniature of a Young Lady (gold), Smart, John (1741-1811) / Bridgeman Images

MOU3483856: Portrait miniature of a young Gentleman, wearing dark blue coat with black collar, yellow and blue striped waistcoat, his pink powdered hair tied with a black ribbon and worn en queue, 1800 (w/c on ivory) , Smart, John (1741-1811) / Bridgeman Images

BST3483870: Plate from the 'Service des plantes de la Malmaison', Sèvres Manufactory, 1803-04 (hard-paste porcelain with enamel & gilded decoration), Redouté, Pierre Joseph (1759-1840) / Bridgeman Images

BST3483872: Bust of Napoleon I, 1806 (hard-paste biscuit porcelain), Chaudet, Antoine Denis (1763-1810) (after) / Bridgeman Images