I just posted the 1 March 2019 update of the Lugerforum FAQ PDF document.
http://forum.lugerforum.com/showthread.php?t=13121
It adds a discussion of point of aim as well as an item on the "n" versus "p" suffix letter found on 1941 "41" date Mauser lugers, including illustrations.
Marc
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Igitur si vis pacem, para bellum -
- Therefore if you want peace, prepare for war.