Never
The Colt Frontier Scout with that serial number was made in 1965.
No serial number provided.
A Colt frontier scout with serial number 127580F was made about 1960.
Your colt frontier scout was made in 1968.
Your colt frontier scout 62 was made in 1966.
In 1959.
About 1966
1968
Your colt was made in 1959.
You must call Colt
The Colt frontier .22 model K with that serial number was made in the first year of production, 1960 as the 2nd year, 1961, started with 3088K.
You will have to call Colt with the serial number to find out.