Depends on condition and whether box and papers are present. Range 300-800
Nice revolver
50-250 usd
Your colt frontier scout was made by colt in 1959.
Try e-gunparts.com.
From the records I have, the Colt frontier scout .22 Q model was produced in 1967. (210500F-223199F) about 1967
50-275
try colt factory: 1 800 962 2658
10-100 usd
10-300 usd
Must be inspected by a gunsmith.
Your colt frontier scout 22lr was produced in 1960.
Your colt frontier scout was made in 1968.