Hi again, John D.,
I can't seem to find the page reference in R. Gibson's book on HK luger (boy, I hate that...), but I seem to recall he indicated "1" and "2" marked lugers are only seen in police-service lugers and the military versions used "+" only...and as of his writing, he mentioned only seeing a few HK magazines with "1" and none, to date, with "2".
Regards,
Pete... <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />