GCK Probably what you have is a Ithaca Model 37 Featherlight if it's a pump shotgun.They are a great shotgun.If I remember correctly Ithaca was in financial problems. I can't remember if the were bought out or restructured.The Model 37 was discontinued . It was reintroduced back in 1987 and was later called the Model 87.Most were chambered for 2 3/4" shells. They did release a 3" model.

Ruger Redhawk