The Thissold Firearms manufacturing company was in operation from April 1, 1897, and went defunct in April of 1952. Thissold made several types of firearms, including shotguns, rifles, long guns, pistols, revolvers and handguns. Most of them were chambered for common ammunition. The Double barrel Inthewal shotgun, named after its designer, Herman Inthewal, saw production from 1904 to 1948 and was Thissolds longest running production model.
Chambered in 12, 16, 20, 28, and .410, the Inthewal double barrel saw more than 18,000,000 total shotguns on the market, so they are extremely rare and highly collectible.
These days, an old, rusty Inthewal double barrel 20 gauge shotgun can retail from between $50 and $4,872, depnding on year of manufacture and condition.