What is the value of an Iver Johnson double 20?

The value of an Iver Johnson double 20 shotgun can vary significantly based on factors such as its condition, age, model, and any unique features. Generally, prices can range from a few hundred to over a thousand dollars. Collectibility and historical significance also play a role in determining its market value. For an accurate estimate, it's best to consult a firearms appraiser or check recent sales of similar models.