Fellows, I have recently come into the possession of a Defourny self opening 12 gauge model that I am trying do find information about. It is a straight grip ejector self opening model that has gold plated internals but a blued (original) action, a funeral model, if you will. The wood is not figured but straight grained and everything about the gun appears original finish. It has 28 1/4" compressed steel barrels(marked) and is S/N 8119. It strikes me as a best grade model with line engraving. I have been unable to date it or find out anything else concerning age or grade. Anyone able to help,please?