Since you did not provide the serial number, here are some options:
Call Colt with the sn and they will tell you.
Go to the Colt webiste, they have a serial number search function.
The Blue Book of Gun Values has sn data that you can look up.
You will have to call COLT
1977
Your colt buntline scout was made by colt in 1964.
In 1959
@ 1967
1970
You will have to call Colt or provide the serial number.
A Colt frontier scout .22lr with that serial number was made in 1959.
The records I have, show a Colt frontier scout .22 Q model with that serial number was made in 1959.
Around 1959.
It was made in 1965.
Around 1958.