Gunnar... can you post a pic of the back ? Lokking well your 1st pic, seems to be something strange in the Screw to Bayonet adapter... maybe simply a photo effect... but I am curious to see... (and so better if also the s/n is visible...)
My offer for the Hektor was a semijoke... anyway I don't want to separate it from me... was my 2nd Leitz lens after the Elmar 5....
