Impossible to answer without a DETAILED description of ALL markings.
Greatly dependent on what rifle, shotgun, or actually even a pistol....
What is the year of mfg. of FN pistol Model 1910, with serial number 583500
You can find the model and serial number by going to proofhouse.com.
The suffix of P7 to your serial number indicates that you have a Browning Nomad model pistol,which was made in the year 1967.
1961-62. You can call S&W and they will tell you when it left the factory.
No way to answer since you did not provide the serial number.
Stevens was in business from 1864-1950. They did not have a "pocket pistol" model, but DID make a "pocket rifle" model from 1869-1916. Am aware of no specific production data based on serial numbers.
Ruger website, customer service, historical data- and you need the MODEL of the pistol. Your serial number indicates that your Ruger pistol was made in the year 1976.The ending serial number for that year was 13-48646.
The year of the Colt 25 pistol with the serial number 255465 varies greatly depending on the actual model of the pistol. That serial number in the model 1908 might date back to the early 1900s. That number in later models can be from the 1950s.
Your Browning model nomad 22cal pistol was made in the year 1971.
1968
about 1973