I've never seen a Smith gun with a part marked LC Smith, Hunter Arms, or LC Smith/Marlin; and I don't think the gun works ever marketed pads under the corporate or gun name. What was done instead was to offer, and factory fit upon customer request virtually any pad availabe during the applicable production period (Silver's, NoShoc, Hawkins, etc). During the post WWII era (Marlin production), original White Line pads were a very popular factory fitted option (but not to be confused with the Pachmayr "White Line" pad; Pachmayr purchased the White Line pad rights after the gun works closed and put his name on the pad at that time). If the LOP is correct and the pad on the gun seems correct for the period; about the only way to confirm originality (since this option is not noted in surviving shipping records) is to remove that pad and look for another set of screw holes. If no evidence of additional screw holes is found, the pad could be original; but this is no gurantee given the availability of period replacment pads. This is an area of judgment where a collector must be very knowledgeable; but, if properly done, a correctly fitted period pad will not negatively impact the value of a vintage gun. Also remember that the aging rubber compounds used in many vintage pads resulted in that pad being turned into "stone", becomin flattened, or crumbling to dust. The result is that many vintage guns originally fitted with pads have had them replaced out of necessity; therefore two sets of mounting screw holes could simply mean a replacement of an original deteroiated period pad.