An Elior Lens ?

A speculative purchase of a 130mm f5.5 Elior Doppel Anastigmat has led me to try to find out who the maker was. I have tried Google search and Vade Mecum. Has anyone ever used one of these or know who made it? I strongly suspect it is an enlarger lens as the thread is 39mm but a different pitch to the standard Leica fit.
I have a fancy it may be from manufacturers Elgeet since it is a plausible name that they might have used but I can find no records to prove it.

Koristka or Koristka's successor Oficine Galileo. See http://www.nadir.it/ob-fot/CECCHI_IFI_1/cecchi_1.htm

Thanks Dan; that was a pretty obscure link which must have taken some finding. I appreciate the trouble you have taken. Google Translate just about makes sense of it.

No, I knew what to look for. Little trouble. It smelled of Koristka.