Crime Museum Ripper. The newer section of the museum contains many exhibits from 20th-century crimes, notably the fake De Beers diamond from the Millennium Dome heist and Dennis Nilsen's actual stove. The second room contains cabinets under the following categories Famous Murders, Notorious Poisoners, Murder of Police Officers, Royalty, Bank Robberies, Espionage, Sieges and Hostages and hijacking with real exhibits and details. On display is even the ricin-filled pellet that killed Bulgarian dissident Georgi Markov in 1978. Also on display is a model of the possible umbrella that fired the pellet. The museum can be visited by police officers from any of
Waterloo Helmet Waterloo Helmet The Waterloo Helmet (also known as the Waterloo Bridge Helmet) is a pre-Roman Celtic bronze ceremonial horned helmet with repoussé decoration in the La Tène style, dating to circa 150–50 BC, that was found in 1868 in the River Thames by Waterloo Bridge in London, England. It is now on display at the British Museum in London. The helmet was dredged from the bed of the River Thames close to Waterloo Bridge in 1868, and in March of the same year it was given on loan to the British Museum by Thames Conservancy. In 1988 its successor body,