I recently bought a Swedish made commercial Lahti. Post is at:
http://forum.lugerforum.com/showthread.php?t=34922
You can compare the edge appearance to the one you're looking at. Softness and roundness would point to refinishing and buffing.
I don't know what the Danish serialization requirements were.
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Igitur si vis pacem, para bellum -
- Therefore if you want peace, prepare for war.