about 1973
Theoretically,yes. However, the odds are against it.
Could not find a Colt frontier scout with serial number 56599P, but a Colt frontier scout with serial number 56599F was made in 1959.
The Colt Frontier Scout with that serial number was made in 1965.
I happened to see the BD the Serieal Number Prefix in researching my AR. Check out the below link as it has the Serieal numbers listed as well as numbers and links for more info. http://www.biggerhammer.net/ar15/ar15serial.html Hope this helps
Never
Your colt frontier scout was made in 1968.
If that is a Colt frontier scout with a suffix F after the serial number, it was made in 1962.
Your colt frontier scout 62 was made in 1966.
That Colt frontier scout was made in 1959.
A Colt frontier scout with serial number 127580F was made about 1960.
Your Colt frontier scout with that serial number would be 47 years old, made in 1964.
on the frame