Hello Montenegrin:

Sorry to be so slow getting back to you... I've been traveling.

The # of the M1903 is5633. This is one of a pair (sequential serial #s), and it is actually the other one that is marked "Vienne". I can't find any marks on the stock of the custom LH gun, but it does have a rather unique clip-on cheek piece for scope use (in addition to the raised cheek piece on the right side of the butt) marked "D.R.G.M." on the metal.

Regards,
GrouseGuy