Eastern Arms was a brand name sold by Sears Roebuck. The Model 1929 suggests that it was made by J. Stevens Arms Co.
Belgium
Email us exactly how your shotgun is marked. gunshop@nctv.com
No Model 772. How exactly is the shotgun marked? sales@countrygunsmith.net
You will have to carefully note exactly how the gun is marked, first.
The ROBUST shotgun was made by Manufrance, which was France's largest private gun manufacturing company. If you look underneath the barrels, it should be marked as to year of manufacture. Value is going to have to be determined by a hands-on appraisal.
Try googling it. I believe you will be surprised.
It is a Stevens shotgun, based on a Browning patent. Inexpensive.
Would need to know exactly how that gun is marked.
It will be marked on the receiver. It was made in 1980
Try www.gunbroker.com
Winchester
If it is marked only Blue Grass, not Blue Grass Model 1900 or Bluegrass Arms Co, and is a hammer double, it was made by Hopkins & Allen Arms, 1896 to 1915, according to Vorisek's Shotgun Markings.