Go to proofhouse.com. You are in the early 60's.
22 cal. single action colt frontier serial# 34170K was made in 1968
A Colt frontier scout with serial number 127580F was made about 1960.
No serial number given.
@1968
1959
No way to answer without the serial number.
1958
1960
You must call Colt with the serial number.
In 1959
In 1968.
Made in 1958.