How do you tell age of a beretta shotgun?

To determine the age of a Beretta shotgun, check the serial number, which is typically located on the receiver or barrel. Beretta often uses a date code system, where letters indicate the year and month of manufacture. Additionally, you can consult Beretta's customer service or reference materials for specific production dates based on the serial number. Lastly, examining the proof marks and other inscriptions can provide clues about the manufacturing period.