Perrin, Your shotgun was made in l90l, it is the lowest grade L. C. Smith made at that time. Your shotgun was designed to be shot with low pressure loads. The OO grade, even being the cheapest grade at that time is one fine shotgun. It is a sidelock with the rotary bolt that will never shoot loose. You own one of the finest shotguns ever made in the USA. Get some low pressure shot shells and she will kill any turkey you choose. Post some pictures.