50-100 USD
Yes, the Bridge Gun Company did make several gauges of shotguns. However, these were not made by the Bridge Gun Company. It was actually made be a diffrent company and marketed under the Bridge Gun Company banner.
About $300, depending on exact model, condition, eccesories, etc.
Dominion Bridge Company
Sold by Shapleigh Hardware in Missouri. Probably made by Stevens, although other companies also made Bridge Gun Co guns.
$100-$175, depending on condition
The Erma Werke firearm company, funded by the German Army (Wehrmacht).
A Barretta is a firearm made by the Barretta company - notably semi-automatic pistols.
Bridge gun company
The Bridge Gun Company was known for manufacturing shotguns in the early to mid-20th century, although specific details about their production timelines can vary. A 16-gauge shotgun with the serial number A980944 likely dates back to the 1940s or 1950s. The value of such a firearm can range significantly based on its condition, rarity, and market demand, typically falling between $200 to $600, but could be higher for unique models or excellent condition. For an accurate appraisal, it's best to consult a firearms expert or appraiser.
Gecado was a model of Arminus/H. Weihrauch firearm. The company H. Weirauch of Melrichstadt,Germany manufactured your firearm that was imported by the now defunct Firearms Import and Export Co. Values were low- $35-$50.
It was constructed by John Mowlem & Co.
William Brophy wrote a book on the history of the Marlin firearm company.