What is the value of a FS Harrison double barrel hammer shotgun?

The value of an F.S. Harrison double barrel hammer shotgun can vary widely based on factors such as its condition, age, rarity, and specific model. Typically, these shotguns can range from several hundred to a few thousand dollars. Collectors and enthusiasts may pay a premium for well-preserved examples or those with unique features. To get a more accurate valuation, it's advisable to consult a firearms appraiser or check recent sales of similar models.