A buddy of mine picked up an old shotgun, he would like me to clean it up. Before i start i would like some idea of it's value,(don't want to mess with it if it has any great value). It is a single shot 10ga(i think) external hammer the break open lever is in front of the trigger guard.All i can make out on the lock is St.Etienne, (french mfg?). Has anyone seen something like this? He does'nt want to shoot it only for decor.