400
I would suggest checking gunbroker.com or gunsamerica.com to get an idea of current asking prices. Asking prices & selling prices can be very different. As of May 2011 a Beretta Model 90 in 98+% conditions has been selling for $400-410 on gunbroker.com
Check the on line auction sites for one similar to yours to see what they have/are selling for.
value of a beretta model 413
It all depends on the person that wants to buy it, the model (there are over half a dozen Beretta Stampede models), the the condition of the barrel and the weapon parts, the accessories that have been added to it and need of funds by the person selling it.
what is the value of a Beretta A L2-12 gauge Model#d39063 worth?
According to BB value runs: $595 (as new) through $295 (fair)
You will have to call Beretta to find out. Value could be 100-1000 or more depending on specifics
100-500
The Beretta AL series was made from 1969-1976. Value would be $250-$350.
$NIB about $600.00+-
$300 - $600, typically.
100-300 USD