Truttmann Mic Connector

[sr1200]

An acquaintance in Germany is looking for a female connector for a Truttmann Condenser microphone.  (see pic)  My first thought was a klein tuchel connector (6 pin) which seem to be fetching a hefty price on the bay.  Anyone have any thing that might fit this laying around they might want to sell? 

The outer diameter of the thread is 21 mm. the inside diameter is 16,1mm so the connector should have 16mm. two opposite pins are 10mm apart (center to center).
pin diameter is about 1.7mm (hard to measure)

 

[sr1200]

Another angle

 

[ln76d]

Definitely it's not Tuchel or Geffel connector. More additional informations about microphone could be useful in searching - for example year of production and country where it was made. Any original manual or flyer could be useful too.
It can be some industrial type connector.

Easiest way probably would be converting it to XLR (little mechanical work).
Those switchcraft XLR connectors could be good as a donor
http://www.docstoc.com/docs/155588665/switchcraft-male-pin-xlr-connector