Proofhouse.com has a store brand chart that might help. Check the Blue Book of Gun Values also. 50-125 US Dollars.
The Sears Ranger 105-20 16 gauge shotgun came out in the 1930s. The Sears Ranger shotgun has a 26-inch barrel.
< $100
describe the type of shotgun and recheck the serial number
Hopkins & Allen
You can purchase parts for a Ranger model 30 16 gauge shotgun at these locations. Gunbroker, Topgunsupply, Budsgunshop, Gunpartshop and Midwayusa.
If it is a double, remove barrel and you will see it along with serial #.
50- 175 usd
We carry new replacement magazines for that shotgun.
sometime between 1900 and 1945
100-300 USD
125-200 dollars.
50-180