buckstix,
Since you have now posted photos, I can clearly see the "claw mount" arrangement. I agree with Mark that this is a very interesting mount, and that the reticle was likely some special order item from Voitlaender. At the time many makers would honor special requests. I would be interested in what Kuduae had to say. I am guessing he addressed it on "Nitro Express" and I'm not a member.
Mike