Nitro King was a trade name sold by Sears Roebuck and H&D Folsom Sporting Goods. Manufactured by Crescent Firearms, Norwich, CT, c. 1905-15. You can invent any history you want for the last 90-100 years, 'cause no one was keeping track of it. It most likely has fluid steel barrels and could still be used as a field gun, if approved by an experienced gunsmith. But if it has a side-hammer, it probably also has a twist-steel barrel and should be a mantle decoration now. Should be worth about $50-$75 for either use.
50-100
Seldom exceed 150 USD
50-100 USD
50-100 or so
Single barrel, tops out at $75. Double-barrel, tops out at $175. sales@countrygunsmith.net
I believe that King Nitro was a model name of Shapleigh Arms Co, St. Louis, MO.
50-100 USD
20-120 usd
70-100 years
You have already identified it as a Shapleigh's King Nitro. Shapleigh Hardware was in St Louis Missouri from the mid 19th century until the middle of the 20th. Their King Nitro guns were manufactured by W.H. Davenport and later by Stevens/Savage.
To find the value of a Nitro King Shotgun, consider factors such as its condition (new or used), rarity, and any unique features or historical significance. Research recent sales on auction sites, gun collector forums, and local gun shops to gauge the current market price. Additionally, consult firearm appraisal experts or reference books specific to shotguns for a more accurate valuation.
The King Nitro 12 gauge double barrel shotgun was manufactured by the King Nitro Company, which was based in the United States. This company was known for producing quality shotguns, particularly during the early to mid-20th century. The King Nitro shotguns are often noted for their craftsmanship and are sought after by collectors today.