Ca.1958 Marlin Instructions/Hang Tag,4-7/8" x 6-3/4".Stapled to the inside of the 4 page instructions is a single sheet "Marlin Sighting-In Guide,an order form for more of the same and an envelope to mail the order form to Marlin.There is no date or code but 3 rifles are advertised on the inside of the instructions and hte calibers they are available in date this Circa-1958. Excellent condition with darkening from age