Not a lot of information. It was a trade name retailed (I believe) by H&D Folsom of New York City. The guns were made by Crescent, Crescent-Davis, and/or Stevens c. 1890-1940.
Knickerbocker was a house brand name for Crescent Arms shotguns distributed by HD Folsom. All you can know for sure is that it was made before 1915.
On the internet.
KNICKERBOCKER shotguns in 12ga generally sell for around $300. There were several variations.
You can find information about Russell Arms Co. shotguns online at places like Gun Trader or at many local gun stores. You can also find information online at Shotgun World or Arms List.
Your Knickerbocker shotgun was mad by the firm Cresent firearms Co.They were in business between 1880,s up till 1932.This firm made many shotguns under different hardware store names,of which yours is one.These were utility grade shotguns made for the general public and many farm owners of the day.there price was resonable for the working familiy,s of the time.
pictuer of Mr Knickerbocker con Edison logo
Will have to be made. Semi-inletted stocks for Crescent Hammerless shotguns can be had for around $40, but require quite a bit of expert work to finish.
my brother has one and these shotguns are very rare.his appraised for 1,200 and that was 15 years ago
The name American Gun Company was a trade mark of the Cresent Firearms Company.This company was in business from 1888-1931.The double barrel shotguns of this company were started in the year 1891.The Knickerbocker shotgun was started during the 1900,s.The knickerbocker shotguns were of a barrel length of 14 inches and chambered in 20 gauge.The barrels should be of nickel finish.A case hardened receiver,and pistol grip stock.
If data has been published, you might be able to find out the date made and specific model.