Most likely Marlin; less than 100 USD
Blue Book of Gun Values has a store brand chart.
Marlin model 81. Value, $75-$130; Good to excellent.
10 to 15 bucks
$200 to $300 depending on condition.
$200 to $300 depending on condition.
Yes.
The Sears model 1 was manufactured between 1968 to 1973. The value, in fairly good condition the rifle is worth around $80.00 . Now you tell me, what co. actually manufactured the gun for Sears ? Spotdog1
Manufactured by Winchester for Sears. Value in typical used condition is around $100. sales@countrygunsmith.net
No published sn data. 25-125 USD
$55.00
I would try the maker of my rifle first.
Features and markings.