What is a sears roebuck and co model 101.100 20 gauge worth?

The value of a Sears Roebuck and Co. Model 101.100 20 gauge shotgun can vary widely based on its condition, age, and any unique features. Generally, prices can range from $150 to $400. For a more accurate appraisal, it's advisable to consult recent sales, check with local gun shops, or refer to firearms valuation guides.