Originally Posted by M ELEY
Opps! Totally missed your post, Fernando! ...
Well, i must say i was shooting in the dark ... partly. I have this fixation that the R
is for Regiment; as consistent with the term 'regimental marks'.
Now that you mention Neumann, i reflect my reasoning in page 177, where a Horseman sabre (Item 348.SS) is marked 3 RG LD NO 35 3-T. Doesn't that three digits set sound like 3th Regiment ? The two following letters referring the troop service, like Light Dragoons or Delaware Line. Then the last part would refer the rack or, more possibly (for me) the serviceman number. Note that the NO (for number) doesn't have a dot.
I will here upload the marks of a couple XIX century Portuguese pistols i used to own, where you see that both Regiment and rack numbers are perfectly intelligible.