The Ertel Werke Enigma  was designed to be used with a paper strip printer named 'Erika'.  The machine can  print plain text or encrypted text. It was made by the Ertel Werke company. Can anyone provide answers to the questions that  appear in some of the photo captions?  Contact Jerry.Proc@sympatico.ca

Frode Weierud provides some information about the machine depicted in this web document .  "This is one of the Ertel Werk machines from their first batch of 600 machines. The first deliveries started in January 1942 and the last machines for this order was delivered on 31 August 1943. Therefore this machine with serial number A00371/bac/E was indeed manufactured in 1943. It is correct that the Ertel Werk had their own serial number series in the A-series of Enigma machines. This is indicated by the final E in the serial number and which I suppose stands for Ertel, to indicate the different number series. Another indicator is that the Ertel numbers always were padded with leading zeros".

Front view of machine, This particular example was held by a German living in Iceland from 1973 to 2014 ( Now deceased) . He dug it out of a bombed out building in Nuremburg late 1945-46 and had to sneak it past US sentries due to a curfew at night . After being acquired from the man's estate, it cleaned up quite well. 
Rear view of the  machine. These are the printer connections.  "Klartext" means "Clear Text. "Schluisseltext" means Ciphered text. The grey plug, a 30 pin connector, has nothinng to do with the Enigma. 
Schematic of the Ertel Werke Enigma  (Courtesy Frode Weierud) 
Production Report for the the Ertel Werke Enigma.
All photos in this table by Hinrik Steinsson

Top internal view of the machine. 
Overall rear view. The Klartext (Cleartext) socket provided keyboard input data while the Schlusseltext (Ciphertext) socket provided the light bulb data.
Nameplate for the above machine.
All photos in this table courtesy The Enigma Museum

Contributors and Credits :

1)  Hinrik Steinsson <[hsteinsson28(at)hotmail.com>
2) Tom Perera, Info@EnigmaMuseum.com
3) Dan    Dan@EnigmaMuseum.com
4) Enigma Museum   https://enigmamuseum.com/
5) Frode Weierud <frode.weierud(at)gmail.com>
6) Frode Weierud, Crypto Cellar Research

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Oct 19/18