What is the value of a 20 gauge single shot Iver Johnson champion?

The value of a 20 gauge single shot Iver Johnson Champion typically ranges from $100 to $300, depending on its condition, age, and any specific features it may have. Factors such as the presence of original parts, historical significance, and overall aesthetics can also influence its market price. To get a more accurate valuation, it's recommended to consult recent sales or a firearms appraiser.