List of exhibits of the Lorenz key addition

The list of exhibits of the Lorenz key addition shows places where authentic Lorenz key machines (SZ 40 or SZ 42) are or were on display. It is believed that around 200 Lorenz machines were in use across Europe during the war. As far as is known, only four of them survived.

photo	country	city	Facility	link	Remarks
	Germany	Munich	German museum	deutsches-museum.de	only key part (without telex part)
	United Kingdom	Bletchley	Bletchley Park Museum (BP)	bletchleypark.org.uk	Telegraph part (without hood) and key part with serial no. 1137 (was loaned to the Heinz Nixdorf MuseumsForum (HNF) for the Cipher Event in 2007 ) Rudolf Staritz with the loan of the SZ from BP in the HNF
	United Kingdom	Bletchley	The National Museum of Computing (TNMOC)	tnmoc.org	On permanent loan from the Norwegian Defense Museum . On the left of the picture you can see the billboard next to the SZ also on display in the TNMOC , an important accessory for the key process .
	United States	Ft. Meade	National Cryptologic Museum	nsa.gov	Telegraph part (without hood) and key part

Individual evidence

1. ↑ Tunny gallery in the TNMOC (English). Retrieved January 23, 2017.
2. ^ Gordon Welchman: The Hut Six Story - Breaking the Enigma Codes . Allen Lane, London 1982; Cleobury Mortimer M&M, Baldwin Shropshire 2000, p. 11. ISBN 0-947712-34-8
3. ^ Heinz Nixdorf MuseumsForum
4. ↑ Lorenz SZ42 - the missing motor. May 29, 2016, accessed February 12, 2019 .