Editing Enigma machine (section)

== Surviving machines ==
[[File:Enigma and Decoder (from above) at Discovery Park of America.jpg|alt=|left|thumb|Surviving three-rotor Enigma on display at [[Discovery Park of America]] in [[Union City, Tennessee|Union City, Tennessee, U.S.]]]]
The effort to break the Enigma was not disclosed until 1973. Since then, interest in the Enigma machine has grown. Enigmas are on public display in museums around the world, and several are in the hands of private collectors and computer history enthusiasts.<ref name=ng>Ng, David. [http://www.latimes.com/entertainment/arts/culture/la-et-cm-imitation-game-enigma-machine-david-bohnett-20150122-story.html "Enigma machine from World War II finds unlikely home in Beverly Hills"]. ''[[Los Angeles Times]]''. 22 January 2015.</ref>

The ''[[Deutsches Museum]]'' in [[Munich]] has both the three- and four-rotor German military variants, as well as several civilian versions. The ''[[Deutsches Spionagemuseum]]'' in [[Berlin]] also showcases two military variants.<ref>{{Cite web |title=Enigma-Maschine: Die Entschlüsselung der Chiffriermaschine |url=https://www.deutsches-spionagemuseum.de/sammlung/enigma |access-date=2024-02-03 |website=Deutsches Spionagemuseum |language=de-DE}}</ref> Enigma machines are also exhibited at the [[National Codes Centre]] in [[Bletchley Park Museum|Bletchley Park]], the [[Government Communications Headquarters]], the [[Science Museum, London|Science Museum]] in [[London]], [[Discovery Park of America]] in Tennessee, the [[Polish Army Museum]] in Warsaw, the [[Swedish Army Museum]] (''Armémuseum'') in [[Stockholm]], the Military Museum of [[A Coruña]] in Spain, the Nordland Red Cross War Memorial Museum in [[Narvik]],<ref>{{cite web|url=http://www.warmuseum.no/no/English/|title=War Museum}}</ref> Norway, [[The Artillery, Engineers and Signals Museum]] in [[Hämeenlinna]], Finland<ref>{{cite web|url=http://www.viestikiltojenliitto.fi/viestimuseo/_eng/index.html |title=The National Signals Museum}}</ref> the [[Technical University of Denmark]] in Lyngby, Denmark, in [[Skanderborg Bunkerne]] at Skanderborg, Denmark, and at the [[Australian War Memorial]] and in the foyer of the [[Australian Signals Directorate]], both in [[Canberra]], Australia. The Jozef Pilsudski Institute in London exhibited a rare [[Polish Enigma double]] assembled in France in 1940.<ref>{{Cite web|url=http://www.thenews.pl/1/10/Artykul/244703,Enigma-exhibition-in-London-pays-tribute-to-Poles |title=Enigma exhibition in London pays tribute to Poles|website=Polskie Radio dla Zagranicy|access-date=2016-04-05|archive-url= https://web.archive.org/web/20160423092753/http://thenews.pl/1/10/Artykul/244703,Enigma-exhibition-in-London-pays-tribute-to-Poles |archive-date=23 April 2016|url-status=dead}}</ref><ref>{{Cite web|url= http://pilsudski.org.uk/en/aktualnosci.php?news=205&wid=13&wai=&year=&back=%252Fen%252F |archive-url= https://web.archive.org/web/20160422230532/http://pilsudski.org.uk/en/aktualnosci.php?news=205&wid=13&wai=&year=&back=%252Fen%252F |url-status=dead|archive-date=2016-04-22|title=13 March 2016, 'Enigma Relay'– how Poles passed the baton to Brits in the run for WWII victory|website=J. Piłsudski Institute in London|access-date=2016-04-05}}</ref> In 2020, thanks to the support of the Ministry of Culture and National Heritage, it became the property of the Polish History Museum.<ref>{{Cite web|url=http://muzhp.pl/pl/c/1887/enigma-w-kolekcji-mhp|title=Enigma w kolekcji MHP - Muzeum Historii Polski|website=|access-date=11 November 2021|archive-date=11 November 2021|archive-url=https://web.archive.org/web/20211111122950/http://muzhp.pl/pl/c/1887/enigma-w-kolekcji-mhp|url-status=dead}}</ref>

[[File:Kriegsmarine Enigma.png|thumb|upright|A four-rotor ''[[Kriegsmarine]]'' (German Navy, 1. February 1942 to 1945) Enigma machine on display at the U.S. National Cryptologic Museum]]
In the United States, Enigma machines can be seen at the [[Computer History Museum]] in [[Mountain View, California]], and at the [[National Security Agency]]'s [[National Cryptologic Museum]] in [[Fort Meade]], Maryland, where visitors can try their hand at enciphering and deciphering messages. Two machines that were acquired after the capture of {{Ship|German submarine|U-505||2}} during World War II are on display alongside the submarine at the [[Museum of Science and Industry (Chicago)|Museum of Science and Industry]] in [[Chicago]], Illinois. A three-rotor Enigma is on display at [[Discovery Park of America]] in [[Union City, Tennessee]]. A four-rotor device is on display in the ANZUS Corridor of the [[The Pentagon|Pentagon]] on the second floor, A ring, between corridors 8 and 9. This machine is on loan from Australia. The United States Air Force Academy in Colorado Springs has a machine on display in the Computer Science Department. There is also a machine located at [[The National WWII Museum]] in New Orleans. [[The International Museum of World War II]] near Boston has seven Enigma machines on display, including a U-boat four-rotor model, one of three surviving examples of an Enigma machine with a printer, one of fewer than ten surviving ten-rotor code machines, an example blown up by a retreating German Army unit, and two three-rotor Enigmas that visitors can operate to encode and decode messages. [[Mimms Museum of Technology and Art]] in [[Roswell, Georgia]] has a three-rotor model with two additional rotors. The machine is fully restored and CMoA has the original paperwork for the purchase on 7 March 1936 by the German Army. The [[National Museum of Computing]] also contains surviving Enigma machines in Bletchley, England.<ref>{{Cite web|title=The National Museum of Computing|url=https://www.tnmoc.org/ |access-date=2020-12-16|website=The National Museum of Computing|language=en-GB}}</ref>

[[File:Muzeum 2 Wojny Swiatowej Gdansk Enigma cipher machine.jpg|thumb|left|A four-rotor ''[[Kriegsmarine]]'' Enigma machine on display at the [[Museum of the Second World War]], [[Gdańsk]], Poland]]
In Canada, a Swiss Army issue Enigma-K, is in Calgary, Alberta. It is on permanent display at the Naval Museum of Alberta inside the Military Museums of Calgary. A four-rotor Enigma machine is on display at the [[Military Communications and Electronics Museum]] at [[CFB Kingston|Canadian Forces Base (CFB) Kingston]] in [[Kingston, Ontario]].

Occasionally, Enigma machines are sold at auction; prices have in recent years ranged from US$40,000<ref>Hamer, David; ''[http://www.eclipse.net/~dhamer/location.htm Enigma machines – known locations*]'' {{webarchive |url=https://web.archive.org/web/20111104151545/http://www.eclipse.net/~dhamer/location.htm |date=4 November 2011}}</ref><ref>Hamer, David; ''[http://www.eclipse.net/~dhamer/enigma_p.htm Selling prices of Enigma and NEMA – all prices converted to US$]'' {{webarchive |url= https://web.archive.org/web/20110927033657/http://www.eclipse.net/~dhamer/enigma_p.htm |date=27 September 2011}}</ref> to US$547,500<ref>Christi's; ''[https://web.archive.org/web/20170617050627/http://artdaily.com/news/96771/Christie-s-sets-world-auction-record-for-an-Enigma-Machine-sold-to-online-bidder#.WZ80cZN94RF 4 Rotor enigma auction]''</ref> in 2017. Replicas are available in various forms, including an exact reconstructed copy of the Naval M4 model, an Enigma implemented in electronics (Enigma-E), various simulators and paper-and-scissors analogues.

A rare ''Abwehr'' Enigma machine, designated G312, was stolen from the [[Bletchley Park museum]] on 1 April 2000. In September, a man identifying himself as "The Master" sent a note demanding £25,000 and threatening to destroy the machine if the ransom was not paid. In early October 2000, Bletchley Park officials announced that they would pay the ransom, but the stated deadline passed with no word from the blackmailer. Shortly afterward, the machine was sent anonymously to BBC journalist [[Jeremy Paxman]], missing three rotors.
[[File:LGD 8293-2.jpg|thumb|Enigma machine - model K 470 on display at the [[Enigma Cipher Centre]], [[Poznań]], Poland]]
In November 2000, an antiques dealer named Dennis Yates was arrested after telephoning ''[[The Sunday Times]]'' to arrange the return of the missing parts. The Enigma machine was returned to Bletchley Park after the incident. In October 2001, Yates was sentenced to ten months in prison and served three months.<ref>{{cite news|url=http://news.bbc.co.uk/1/hi/uk/1609168.stm |work=BBC News|title=Man jailed over Enigma machine|date=19 October 2001|access-date=2 May 2010}}</ref>

In October 2008, the Spanish daily newspaper ''[[El País]]'' reported that 28 Enigma machines had been discovered by chance in an attic of Army headquarters in Madrid. These four-rotor commercial machines had helped Franco's Nationalists win the [[Spanish Civil War]], because, though the British cryptologist [[Dilly Knox|Alfred Dilwyn Knox]] in 1937 broke the cipher generated by Franco's Enigma machines, this was not disclosed to the Republicans, who failed to break the cipher. The Nationalist government continued using its 50 Enigmas into the 1950s. Some machines have gone on display in Spanish military museums,<ref>Graham Keeley. ''[https://archive.today/20100201144500/http://www.timesonline.co.uk/tol/news/world/europe/article5003411.ece Nazi Enigma machines helped General Franco in Spanish Civil War]'', [[The Times]], 24 October 2008, p. 47.</ref><!-- for the whole paragraph --><ref>{{cite web |url=http://www.cripto.es/museo/enigma-esp-fotos.htm |title=Taller de Criptografía – Enigmas españolas |publisher=Cripto.es |access-date=8 September 2013 |archive-url=https://web.archive.org/web/20130611204718/http://www.cripto.es/museo/enigma-esp-fotos.htm |archive-date=11 June 2013 |url-status=dead }}</ref> including one at the National Museum of Science and Technology (MUNCYT) in La Coruña and one at the [[Museum of the Army (Toledo)|Spanish Army Museum]]. Two have been given to Britain's GCHQ.<ref>{{cite web|url=http://www.schneier.com/blog/archives/2012/03/rare_spanish_en.html |title=Schneier on Security: Rare Spanish Enigma Machine |publisher=Schneier.com |date=26 March 2012 |access-date=8 September 2013}}</ref>

The [[Bulgaria]]n military used Enigma machines with a [[Cyrillic script|Cyrillic]] keyboard; one is on display in the [[National Museum of Military History (Bulgaria)|National Museum of Military History]] in [[Sofia]].<ref>{{cite web|url=http://www.znam.bg/com/action/showAppArticle?appID=3&encID=2&article=3514226659&sectionID=1 |title=Communication equipment|publisher=znam.bg|date=29 November 2003|access-date=13 January 2015|archive-url= https://web.archive.org/web/20150113062919/http://www.znam.bg/com/action/showAppArticle?appID=3&encID=2&article=3514226659&sectionID=1 |archive-date=13 January 2015|url-status=dead}}</ref>

On 3 December 2020, German divers working on behalf of the [[World Wide Fund for Nature]] discovered a destroyed Enigma machine in [[Flensburg Firth]] (part of the [[Baltic Sea]]) which is believed to be from a scuttled U-boat.<ref>{{Cite news|date=3 December 2020|title=Divers discover Nazi WW2 enigma machine in Baltic Sea|work=[[Reuters]]|url=https://www.reuters.com/article/us-germany-war-enigma-idUSKBN28D25F |url-status=live|access-date=3 December 2020|archive-url= https://web.archive.org/web/20201203171005/https://www.reuters.com/article/us-germany-war-enigma-idUSKBN28D25F |archive-date=3 December 2020}}</ref> This Enigma machine will be restored by and be the property of the Archaeology Museum of [[Schleswig Holstein]].<ref>{{cite web |last1=Welle (www.dw.com) |first1=Deutsche |title=German divers hand over Enigma encryption machine in Baltic {{!}} DW {{!}} 04.12.2020 |url=https://www.dw.com/en/german-divers-hand-over-enigma-encryption-machine-in-baltic/a-55829171 |website=DW.COM}}</ref>

An M4 Enigma was salvaged in the 1980s from the German minesweeper R15, which was sunk off the [[Istria]]n coast in 1945. The machine was put on display in the [[Pivka Park of Military History]] in [[Slovenia]] on 13 April 2023.<ref>{{cite web| url = https://www.parkvojaskezgodovine.si/en/23851/| title = Revealing of Enigma in the Park of Military History Pivka| date = 13 April 2023}}</ref>