You need to supply the model number and serial number to get a answer.
It is impossible to tell the make and model from just a serial number.
Need serial number and model number to get you the correct answer to your question.
There isn't one
Your serial number indicates that your Winchester model 12 16 gauge shotgun was made in the year 1925.
I will need the serial number before I can age your model 12 shotgun.
Comparison with known model.
model 77 does not have a serial number,they were made before serial numbers were required
Proofhouse.com has Winchester serial number data.
Impossible to answer without the serial number. SERIAL #L2105305
Your Winchester Model 12 Slide Action Shotgun in 12 gauge with serial number 1747610, was manufactured in 1959.