Where is the serial number for Ithaca Model 37 Featherlight 12 Ga?

The serial number for the Ithaca Model 37 Featherlight 12 Ga is typically located on the underside of the receiver, just in front of the trigger guard. You may also find it on the left side of the barrel near the receiver. If you're having trouble locating it, consult the owner’s manual or reach out to a gunsmith for assistance.