No serial number visible. Apparently none required before the Gun Control Act of 1968. Stevens / Savage Model 15A 22 believed manufactured in the 1950's and 60's. Guns over 50 years old may be "antiques," which effects some registration requirements.

Gun dealer took a look at the rifle and in response to my query about the need for registration said, "No, this old thing just needs to be cleaned, used safely, and kept safely - and remember the only "safety" with this gun is to unload it."