Need help with Beretta 81 marks

[GaryED50]

Hey guys I'm new to These things. can you help me with what these marks mean

 

[Metric]

AF is the Beretta date code for 1980. I don't know the others.

 

[GaryED50]

AF is the Beretta date code for 1980. I don't know the others.

Thank you

Gary

 

[Jim Watson]

The others are standard Italian proof marks.

 

[PSP]

Here's a great thread from the Beretta Forum regarding 80 series info.
https://berettaforum.net/vb/showthread.php?t=94273