Impossible to answer without a detailed description of all features and markings.
Would need model name to answer.
You will have to call Colt since you did not provide the serial number.
You must call Colt with the serial number.
Can't be answered without the serial number being provided. You will have to call Colt.
Proofhouse.com has Colt sn data.
You must call Colt with the serial number to find out.
A Colt frontier scout with serial number 127580F was made about 1960.
No serial number given.
That serial number is for a Colt Frontier Scout K Model chamberd in 22LR.
A Colt peacemaker with that serial number was made in 1974.
Proofhouse.com has Colt sn data
A Colt frontier scout .22lr with that serial number was made in 1959.