Only Colt would know.
It should have the caliber marked on the barrel,such as"38 Colt New Police".
1921
value depends on overall condition. if your colt is a police positive special, made about 1921
$150-$200 and up.
Yes
value depends on overall condition...............
32 caliber is a little smaller then the 38 caliber
The age would be around 1949.
manufacured about 1915.....................
made about 1917
38 caliber revolver ammo
made about 1919