No way to answer without knowing who made it, condition, finish, sights, stock, accessories, box, papers and a detailed description of all markings.
20-100 or so
100-1000 USD depending on specifics
$75-$100, depending on condition.
Marlin.
The Marlin 22 CAL Model 81 was manufactured between 1937-1940. It also manufactured the SEARS MOD 43-103-2850-22 CAL . S.L.&L.R. Current Value in good condition as of 2008 is $150.00-$230.00
Your High Standard sport king model 103 is valued between 90-200 dollars,depending on overall condition and a good bore.
Marlin is about same as model 81
What is the value of a Walther Model II .22 cal. 9 shot magazine?
value of Remington targetmaster model 41 cal 22rifle
Made by Marlin....same as the Marlin Model 80
Made by Marlin....same as the Marlin Model 80
According to S.P. Fjestad, 1996 issue, the Marlin Model 81 was made from 1937 to 1940. In another answer on this site it lists the Model 43-103-2850 22 cal. as having been made by Marlin, Model 81.