? on proof mark 1940 P08

[Daniel76]

They show up occasionally and have largely been connected with what was mentioned above (a rejected part that was corrected and then later installed on a working gun). The P38 community has held this view for quite some time. There are variations of it on lugers, but I think some of the confusion is driven by a 'sunburst' type marking that is associated with East German work. They are quite different.
Here is a picture of one that I've asked Ed and several others about, that seems to fall into that category. It is on a Simson luger, and unlike some of them, is quite prominent. I'm not sure the luger community has ever developed a consensus on what this may mean, since my understanding is that there is no documentation to support the theories involved.