mark, lightweight model may still show the numeral II on the floorplate ,(or a numeral I for a standard 24" barrel) if it hasnt worn of or been reblued, what is different on your gun is the spoon handle which is definetly rigby even though seldom seen,the checkered butt , and the pistol grip cap, griifin &howe had one retailed by atkins about 2 years ago i mkick my ass for not acting on it .get in touch with paul roberts of jefferys rifles he will have the ledger on this gun ....paul