The TC Seneca was produced from 1976 to 1987 It has a 13/16" wide octagon barrel 27" long. The Cherokee was produced until 1994 it has a 13/16 wide octagon barrel that is 24" long and no patch box or brass cap at the for-end of the stock.
If you have the money.
200-400 USD
100-300 USD
If it uses gunpowder to launch a projectile it is considered a firearm
I Sold mine for 100 dollars
100-300 USD depending on condition.
You can contact Thompson Center Customer Service through their website for help. They are still in business, you know. BTW, really good rifles.
$400-$450
Depends on the Thompson. If you mean the Thompson submachine gun, yes, they were made in caliber .45 ACP (and other calibers as well). However, there are other Thompsons. I have a Thompson Center muzzleloading rifle that is .50 caliber.
No published sn data
Can't be answered without a detailed description of all markings.
The Thompson Center Hawken rifle with serial number 66841 was likely made in the late 1970s to early 1980s. Thompson Center Arms began production of the Hawken model in the mid-1970s, and serial numbers from that era can help narrow down the specific year of manufacture. For an exact year, consulting a Thompson Center production records or reference guide would provide definitive information.