DUMEAS

History

On this page you can find information about the history of encryption, decryption and communications.


(Pre-) World war 2 historical map

The information in the databases is combined at the military world map. Here the location of units and events is shown.

 

Database


Link

Equipment database
Information about electronic military equipment is stored in this database.
Pleas contribute to the database so it keeps expanding!
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database

Persons database
Information about important persons who contributed to technical and cryptographic advances is stored in this database.
Pleas contribute to the database so it keeps expanding!
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database
Units database
Information about important units who participated in war is stored in this database. Examples of units are Bletchley Park, 101st Airborne.
Pleas contribute to the database so it keeps expanding!
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database
Events database
Information about important events who participated in war is stored in this database. These are linked to items in the persons, units and equipment database. Examples of units are D-Day, Breaking of Enigma.
Pleas contribute to the database so it keeps expanding!
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database
War Department Technical Manual (TM) database
In this database a list of Technical manuals is stored. Use CTRL+F to search for a manual.
Pleas send us your TM manuals, see the contact page for the email.
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database



Date

Subject


Link


General information

Military time piece markings
A list of military time piece markings.
Time piece
markings
20-10-1945
Technical history of the 6813th signal security detachment
A document which describes the technical history of the 6813th signal security detachment.
Download




Codebreaking
15-06-1945
NR 857 CBCB28 1153A British bomb
A description of the operations of the 6812th signal security detachment in the European theater of operations. The document is copied from the original document at the The National Archives and Records Administration . The document is not complete read for more details: link.
Chapter 1
Chapter 2
Chapter 3
30-03-1945
The Tentatve List of Enigma and Other Machine Usages
A list with descriptions of machines.
Download
1940
The Bletchley Park translated Enigma instruction manual
A list with descriptions of machines.
Download
1940
The Enigma offizier and staff procedure
A description of the double enciphered officiers messages.
Download
20-07-1944
The Bletchley Park 1944 cryptographic dictionary
A description of the words and terms used at Bletchley Park.
Download

Part of the "General Report on Tunny", the Newmanry History
A part of the description about how the Lorenz machine was broken. The document is not complete read for more details: link.
Download
01-12-1944
Special Fish Report
A report about breaking the Lorenz machine. The document is not complete read for more details: link.
Download