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.
Savagearms.com
ESSEX Tradename used by Belknap Hardware Company of Louisville, Kentucky on shotguns made by Crescent Fire Arms Company. ESSEX Tradename used by J. Stevens Arms Company on rifles and shotguns.
I can't find a cross-reference for that number, but Eastern Arms was a trade name used by Sears Roebuck. Most of the shotguns were made by Stevens/Savage.
Springfield Arms shotguns were manufactured by the Stevens division of Savage Arms from 1920 to 1948.
Here's what little I can find in the Standard Catalog. Incorporated in 1902. Used the names Union Fire Arms, Union Arms Company, Illinois Arms Company and Bee Be Arms Company. In 1917 the company was either bought up or absorbed by Ithaca Gun Company. They manufactured slide action shotguns, hammerless doubles, a few single shot shotguns, and a couple semi-automatic pistols.
This was a trade name distributed by Shapleigh Hardware of St Louis on shotguns made by Crescent Fire Arms (1892-1931) and J. Stevens Arms and Tool Company (1886-1916).
Mitchell Arms. I own one of these Autoloading shotguns myself! Highest Quality you can find.. period!
On the internet.
Richland Arms Co, Blissfield, Michigan, imported a variety of firearms, mostly Spanish and Italian-made shotguns, before 1986. I don
Diamond Arms shotguns were made by several manufacturers, but if the rest of the patent date is '13', this one was by J. Stevens Arms and retailed by Shapleigh Hardware.
Spanish-made shotgun imported between 1986-2000. Decent entry level side-by-side.