How old is your Iver Johnson 20 gauge serial?

To determine the age of your Iver Johnson 20 gauge shotgun, you'll need to reference the serial number against Iver Johnson's production records, which can provide a date range for when the firearm was manufactured. Generally, Iver Johnson Firearms were produced from the late 19th century until the mid-20th century, so the serial number can help pinpoint the year. You may also consult dedicated firearms databases or contact a gunsmith or collector for more specific information.