Here are some very useful websites to learn more about codes and cipher machines. Click to view:
Crypto Museum (Paul Reuvers/Marc Simons)
Cipher Machines (Ralph Simpson)
Frode Weierud's CryptoCellar Tales
Jerry Proc's Crypto Pages
Enigma Museum (Tom Perera)
Richard Brisson's Website
Klaus Schmeh's Krypto Kolumne
Bob Lord's Crypto Museum
Miscellaneous artefacts (1-5):
1. Article published in 1923 entitled "Die Chiffriermaschine: Ein neues hilfsmittel der Nachrichtenübermittlung", meaning "The Cipher Machine: A new tool for transmitting messages". Includes a picture of the Enigma Handelsmaschine - the first machine made under the "Enigma" name. It is described simply as "Chiffriermaschine Enigma".
2. British First World War notice concerning the use of ciphered communications transmitted from observation posts.
3. Transcript of decrypted German messages likely produced by the USAAF’s Radio Squadron Mobile interception unit, which dealt with low-grade German tactical messages. There is a reference on the document to the Flaksignastafel - the German antiaircraft signals code. Currently, however, there isn't anything to compare this document to. If you have any information on this item, please do get in touch with me through the methods below.
4. Photograph of Wrens at the bombe outstation at Stanmore in 1943 and some at outstations in unidentifiable locations. Outstations, initially located at Adstock, Gayhurst, Wavendon -- all in Buckinhamshire, and then later at Stanmore and Eastcote, were established out of the danger of the bombes at Bletchley Park being destroyed by German bombing raids. These outstations took on the majority of German communications, with many more bombes (both three-rotor and four-rotor-types) issued to outstations in comparison to the noticeably fewer 4-6 at Bletchley Park. These bombes at Bletchley Park, after outstations were established at Stanmore and Eastcote (replacing the outstations of Adstock and Wavendon) were used for demonstration and training purposes only. The outstation at Stanmore was known as OSS - "Out Station Stanmore" and the one at Eastcote, OSE - "Out Station Eastcote".
5. Four Kriegsmarine "Würfelschlüsselzettel" message forms accompanied in a book of grid paper with "Kriegsmarine" on the front cover. This was purchased from the grandson of a Kriegsmarine Minesweeper Commander. His service record is written on the document - likely used as spare paper in the early 1950s in his application to the post-war German Bundeswehr. Little is known about how this document was used. If you have any information on this item, please do get in touch with me through the methods below.