I just purchased a very nice professionally refinished L.C. The seller said it was a "Grade 3" gun. It is engraved with the Quail on the left side and ducks on the right. It has the gold bar on the rib. There are no markings on the water table or elsewhere as to the "Grade". The serial number is 116453 which if I am reading the chart correctly makes it a 1929 gun. But if I am not mistaken the factory stopped numbering the grades by then and started to give name designations to the guns. Help on identifing the "Grade" would be appreciated.