Where can you find something about the manufacturer and possible value of a Witte's Special NO12 410 double barrel shotgun?

Answer 1

Several different trade names include the name Witte and were made for Witte Hardware in St Louis from the 1880's to 1920's. Double barrels marked Witte Special were made by J. Stevens A&T Co / J. Stevens Arms after 1914. If your gun actually has the "'s" on the name, it may be something different. Value as a shooter (only if approved by a competent gunsmith) or as a wall decoration would be $150-$250, depending on condition. * Just noticed that this is a 410. Add $50 the top-end price, even more if it is like new.