If it is not marked on the barrel, you should have a gunsmith measure the chamber length.
Before attempting to fire this shotgun with ANY ammunition, you need to have a gunsmith check the hinge pin, headspace and rim recess. firstname.lastname@example.org
The value of a J Stevens single barrel 410 shotgun from 1922 depends on its condition. This gun in excellent condition is valued between 125.00 and 150.00 as of 2014.
If it is a typical Stevens double or single barrel there should be a metal lever towards the back of the stock slide it left or right and tilt the barrel down.
Old catalogs, old gun books.
In 2012, $70-$200 depending on condition.
$35 to $75, depending on condition.
Complete description and pictures would help, otherwise, can't be done.
Wisners list it but dont answer e-mails
it was made in or around 1972
Try Shotgun news or Gunbroker.com Try AuctionArms.com or Guntrader.com