If you are asking about air rifles it was made by Crosman Air guns.
Mossberg IIRC
Compare to a known dated model, Blue Book of Gun Values.
Standard Catalog of Firearms or the Blue Book of Values might help
The Remington Model 760 Gamemaster with the serial number 31756 was made in 1955. The Model 760 was produced from 1950 until 1980, and serial numbers can help determine the year of manufacture. In this case, the serial number indicates it falls within the early production years of the model.
Colt
The value of a Hawthorne Model 760 30 06 can vary significantly based on its condition, age, and market demand. Generally, it may range from a few hundred to a couple of thousand dollars. For an accurate appraisal, it's best to consult recent sales data or a firearms expert. Prices can also fluctuate based on regional interest and the specifics of the firearm's features.
No sn data available.
Remington Model 760 Gamemaster.
The 30-06 appears to have been one of the few calibers in this model that made it thru the complete life cycle of the 760 Gamemaster, which was fron 1952 to 1980.
I own one of these - they were made by FN using Mauser actions. You should see the markings from these companies on the receiver if you take off the stock.
Looks like Savage built them. Their model SB100B. Hawthorne model name was "Vulcan". Parts are available from Numrich Gun Parts. Good to see someone else owns one.
Mossberg made most of the Hawthorne bolt action shotguns. They were sold as a Montgomery Wards special.