It may not have one. Older, less costly guns often did not have a serial number if they were made before 1968.
Serial numbers were not required prior to 1968.
I can say that Stevens began production of the model 94 single shot shotguns in the year 1929.and finished in the year 1945.
It may not have one. Rifles and shotguns made prior to 1968 were not required to have serial numbers.
No published sn data
no unfortunatly they don't. Savage bought them out in the 1920's and continued to use the name because if the contract Stevens had with sears but to my knowlege they stopped in the 1960s
The serial number range for the Stevens model 520-30 military shotguns is from 30,000-70,000.As to the year of manufacture you will probably have to contact Savage/Stevens directly.
Many of the shot guns are valued in price close to $500 each. The amount will vary depending upon the condition that it is in.
Most shot guns can handle deer slugs.
Savage arms and j. Stevens
It was made sometime between 1920 and 1948. If you really need to know more precisely, find the contact information for Mr John Callahan on savagearms.com. For a fee he will research old Stevens guns. (Riverside is a Stevens trade name).
If it was manufactured prior to 1968 it probably doesn't have one.