Send it back to the maker or find a gunsmith.
10-100 USD or so
10-100 usd
300-500 USD
no
maybe 100 USD
You will have to contact Beretta
check out: http://stevespages.com/pages7b.htm
100-300 USD
Blue Book of Gun Values
No sn data for FN weapons in the public domain.
Your colt model 1903 hammerless 32cal was made in 1916.
50-250 usd