This gun was manufactured for Sears Roebuck by the J. Stevens division of Savage Arms sometime between 1931 and 1941.
That's a Stevens gun manufactured in the 1930s. A fully functional 12 gauge double is worth $150-$250, depending on condition.
I think it's the latter.
On the low side. There should be two caps, one marked with an H and one marked with an L. Use the one marked with an L
54 543
It will be marked.
Human rights
It will be marked on the receiver/barrel.
By looking at the barrel and receiver.
It should be marked on the barrel.
It will be marked on the barrel or receiver regarding where it was made.
It will be marked on the receiver/barrel where it was made.
Where will be marked on the barrel/receiver.
Where will be marked on the barrel or receiver. When is 1977.
It will be marked on the barrel or receiver. Most likely Japan or Portugal.
It will be marked on the barrel.
It is marked on either the receiver or the barrel.
Probably turn of the century
The caliber should be marked on the barrel near the receiver. The Model 39 is a 22LR