Army model info

I assume that my Herstal-Belgique model 1951 is the army model. The SL# on the bolt is stamped not etched. It also lacks the *88s on the reciever ring. And is black on grey enamel. Is the Caliber or value different from the Navy model? I would sure appriciate all info that I can get specifically on the Army model. All SL# on the gun match. The bore looks good and the action is pretty tight.