czech1022-
Would it be possible for you to remove the scope mount base on the receiver ring and post a photo of the markings that will be exposed? While I'm pretty sure it's an Erfurt product, I may have been mistaken in calling it a Kar98 receiver, rather than a Kar98a. The date be as late as 1918.
Here's an image from an unaltered rifle of what the markings might look like.
Thanks.
--Bob
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