DGC2647873: Portrait of J. Warren Kerrigan (photo) / Bridgeman Images

DGC2957412: Grand Duke Konstantin Konstantinovich, 1898(photo) / Bridgeman Images

SRB5976376: A policeman directs traffic near Times Square, New York, USA (photo) / Bridgeman Images

DGC2956993: Portrait of A. E. Housman (photo) / Bridgeman Images

DGC2965981: Grand Duke Paul Alexandrovich with his Cousins, Grand Duchess Olga Konstantinovna & Grand Duke Konstantin Konstantinovich. (photo) / Bridgeman Images

DGC696877: Arcade photo of two U.S. Navy Crows kissing, c.1940 / Bridgeman Images

DGC3052655: Two American sailors share a kiss, c.1941 (photo) / Bridgeman Images

DGC2649991: Lord Alfred Douglas and his brother Lord Drumlanrig, (photo) / Bridgeman Images

JSA617463: W.H. Auden in the beach house 'Bective Poplars' on Main Walk, in the town of Cherry Grove, Fire Island, New York, 1940s (b/w photo), Stern, James (1904-93) / Bridgeman Images

BBN3126430: Keith Haring, Andy Warhol and Sean Hauseman, New York, 1984 (photo), Buchanan, Ben / Bridgeman Images

DGC3056453: Two American sailors share a bunk, c.1941 (photo) / Bridgeman Images

NIK4429603: Portrait of a homosexual. France, 1920s. / Bridgeman Images

DGC2647815: Portrait of Claude McKay (1889 – 1948) (photo), Allen, James L. (1907-77) / Bridgeman Images

JSA617456: Noemi Kenmore, Chester Kallman, Tania Stern and W.H. Auden in front of 'Bective Poplars' on Main Walk, in the town of Cherry Grove, Fire Island, New York, Summer of 1946 (b/w photo), Stern, James (1904-93) / Bridgeman Images

DGC2647814: Portrait of Claude McKay, c.1928 (photo) / Bridgeman Images

DGC2647863: Portrait of Henry Scott Tuke, c.1885 (photo) / Bridgeman Images

JSA617440: W.H. Auden, Rhoda Jaffe and Tania Stern in front of 'Bective Poplars' on Main Walk, in the town of Cherry Grove, Fire Island, New York, Summer of 1946 (b/w photo), Stern, James (1904-93) / Bridgeman Images

DGC2957430: Two WW1 soldiers, c.1915 (photo) / Bridgeman Images

DGC3025301: Two German Soldiers sharing a bunk, c1913 (photo) / Bridgeman Images

DGC2647922: Portrait of Lytton Strachey (photo) / Bridgeman Images

GNG5277406: Homosexual marriage. Gay couple and Holy Bible / Bridgeman Images

NIK4429582: Portrait of a homosexual at the end of 1920-beginning 1930. / Bridgeman Images

GNG5277416: Homosexual marriage. Lesbian couple and Holy Bible / Bridgeman Images

DGC3052657: Portrait of two Soldiers , c1941 (photo) / Bridgeman Images

DGC2647841: Portrait of Frederick Rolfe c.1889 (photo) / Bridgeman Images

GIO5027095: Portrait of three young men holding hands, Italy, 1910 (b/w photo), Unknown photographer, (20th century) / Bridgeman Images

GNG5277431: Homosexual marriage. Gay and lesbian couples and Holy Bible / Bridgeman Images

GNG5277417: Homosexual marriage. Gay and lesbian couples and Holy Bible / Bridgeman Images

GNG5277422: Homosexual marriage. Gay and lesbian couples and Holy Bible / Bridgeman Images

DGC3025287: One soldier carrying another with a flower in his mouth, c.1942 / Bridgeman Images

DGC3052654: Portrait of two Soldiers , c1941 (photo) / Bridgeman Images

GRZ4955070: Gay couple (Homosexual couple) on the fog docks of Venice 1960 / Bridgeman Images

GRZ4955082: Homosexual couple on a bridge of Venice, 1960 (b/w photo) / Bridgeman Images

DGC3959742: American Soldiers with a parasol c.1915 (photo) / Bridgeman Images

MEP2352214: National congress of F.U.O.R.I. (Italian United Revolutionary Homosexual Front) / Bridgeman Images

DGC3666786: American Signal Corps Men Dancing, 1915 (photo) / Bridgeman Images