it is a Stevens, parts are interchangeable...
Depending on which parts, they may need to be made.
An Eastern Arms model 101-7 shotgun is values at $200 to $300 in fair condition. In mint condition it is values at $450. This shotgun was sold by Sears.
Sears guns with the Eastern Arms label were made by Andrew Fyrberg, Iver Johnson, and J. Stevens. If you're lucky, your gun will be one of the Stevens guns and parts MAY be available from Savage Arms or Numrich Gun Parts.
50-100 or so
Numrich Arms, Internet or Make Them.
No sn data.
Numrich Arms has parts for the 311
Try Numrich Arms. They go by gunpartscorp.com. They have some parts, some are unavailable or expensive for this low value shotgun.
Buy my 20 g companion,and there are your email@example.com
Eastern Arms was a brand name sold by Sears Roebuck. The Model 1929 suggests that it was made by J. Stevens Arms Co.
2.5 inch only is my specs on mine is
Seldom more than 100 USD in excellent condition.
A FEW parts are available from gunpartscorp website.
You can get one, or really anything you need for your gun off of www.Numrich.com.
Utility grade, functional, not much value.
Numrich Arms should have them.
The 238 is similar to the 258. For parts, try gunpartscorp.com
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.
Try your local gunsmith. The Riverside is a Stevens shotgun. If you can find out which model it is, you can probably find the wood at Numrich Gunparts