Value depends on EXACT model and condition, but a pistol such as the Beretta Model 21 may be worth $125-200.
50-150 USD
The company is worth millions.
AFAIK, Beretta has never made a handgun in that caliber.
50-200 depending on specifics
50-500 USD depending on specifics
100 USD
50-150
50-250 depending on specifics
Beretta has been in the gun business for over 300 years, and has made several models in .25 ACP (or 6.35mm in Europe). Value will depend on WHICH model, and condition. Typically anywhere from $100-$300.
20-100
100-300 USD