You didn't really ask a question. The markings are probably worn and the FPA is realy ERA. New Era Gun Works was a trade name used by the Baker Gun Company on firearms made for an unknown retailer, c. 1890-1919.
Make, model, condition. We need all 3 factors.
The value of a 12-guage Maverick Shotgun can vary greatly based on the age of the gun, as well as the condition of the gun.
What kind of shot gun?
Try Midwest Gun Works.
It is 4 and the value is 3000.00
Despite the name, it is not a machine gun. Value seldom exceeds 100 USD
The value of an 11-87 Remington shotgun depends on the condition of the gun. This shotgun in excellent condition sells for between 50.00 and 625.00 as of 2014.
50-150 or so
Take it to a gun show or a gun store and speak with a registered gun dealer.
The value of a gun is determined by the condition of the gun and its demand. As of 2014 the value of the Savage 12 gauge gun is 165.00.
The value of Stevens model 124b shotgun is about anywhere from 800 to 1600 dollars depending on the shape of the gun
Try gun shops, gun shows, Shotgun News, want ads, Google, e-gunparts.com, MidWest Gun Works