"Enigma B207 - Hitler's Cipher Machine ?" article

I've noticed that in the current issue of the "Eye Spy" magazine ( No. 91, 
2014 ) there is an article "Letter from Fort Meade" by David Hamer,
regarding the "Enigma B207 - Hitler's Cipher Machine ?" ( pp. 68-70 )

This follows very much the description given in the article "Railway
Enigma and Other Special Machines", dated 30 May 2013, and available
here :
http://cryptocellartales.blogspot.co.uk/2013/05/railway-enigma-and-other-special.html

I wonder whether David or Frode Weierud have any new information on this
series of Enigma B2xx machines, which they could share with us ?

Just interested....(-;

Thanks,
Martin