August327,
You have an Original Oberndorf Sporting Rifle made by Mauser, not a remodeled military rifle. Commercial proof marks Crowns over BUGN. Looks like Sporting Carbine Type M pattern 720 (pg. 126 Jon Speed Original Oberndorf Sporting Rifles). Serial # 118197 places it pre-war 1936-37. There were only 127,000 Commercial Mausers produced and many have been altered or destroyed. Mr Speed evaluates the Model M carbine between $1000. and $5,500. depending on condition and extras. Its a pretty keeper for people who like fine commercial mausers, but if you must sell get Mr Speeds book and educate yourself on what you have and not get cheated on price. Good luck, wish it were mine.
Bob
