No, NR stands for Number in german.
I belive 1.G. is 1. Garde-Regiment zu Fuß but .7 i dont know followed by . Waffennummer
someone offert me an DWM 08, but he refused , to tell the number, maybe i will be able to become some picture.
But im very interested in this Special Regiment.
http://de.wikipedia.org/wiki/1._Gard...nt_zu_Fu%C3%9F