It is a 12 GA pump action shotgun.
I just saw one on sale for $140.00
I bout one Android thay told me it was from 1959
if made 1968 or before it wasn't required to have one if it does it will be clearly marked on the barrel
The Stevens 16-gauge pump shotgun, also known as the Stevens Model 770, was produced from the late 1930s until the early 1960s. Depending on the specific year of manufacture, the age of a Stevens Model 770 can range from approximately 60 to 85 years old as of 2023. The exact age would depend on the serial number and production year of the individual firearm.
if made 1968 or before it wasn't required to have one if it does it will be clearly marked on the barrel
Contact Stevens Customer Service through their website
If there is no serial number, it is a 1960's model-up to 1968. In 1968 a law was passed requiring all guns to have a serial number.
it is selling for anywhere from 120.00 dollars at 70% condition to 200,00 dollars in 95% condition.
Hey, I just picked one up and have been looking into it. It is almost impossible to do because without serial numbers, there is no record of them.
Your winchester model 770 was made by winchester between 1969-1971.
The Stevens model 9478 was made by Stevens between 1978-1985.
your 770 is worth about $250..00 to $300.00 hope this helps