If you are asking about air rifles it was made by Crosman Air guns.
Compare to a known dated model, Blue Book of Gun Values.
Standard Catalog of Firearms or the Blue Book of Values might help
No sn data available.
Remington Model 760 Gamemaster.
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.
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.
Mossberg made most of the Hawthorne bolt action shotguns. They were sold as a Montgomery Wards special.
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.
There are well over 8 different variations of the Crosman model 760. Unfortunately Crosman doesn't have an on-line list of dates for model 760. However each model variation has a distinct variation that can give you a hint of the year it was made. So here is what I suggest. you can try Crosman Customer Service ( see the link below) and ask them, or you can get a hold of a book called "Bluebook of airguns" and read the section on the model 760 and identify your model year.
Blue Book of Gun Values has a store brand chart