What is the value of a 12 GA choke single shot shotgun made by Keystone Arms Company in Philadelphia Pa Approximate age is 70 to 80 years old?

The value of a 12 GA choke single shot shotgun made by Keystone Arms Company, especially one that is 70 to 80 years old, can vary based on its condition, originality, and market demand. Generally, such shotguns can range from $150 to $400. Factors like rust, wood condition, and functionality also greatly influence the final appraisal. For a more precise valuation, consulting a firearms expert or appraiser is recommended.