my understanding is that the King Cobra was based on the earlier Trooper (such as the venerable Trooper Mk III) revolvers but featured a more modern design with full length underbarrel lug and solid top barrel rib, and more modern user friendly adjustable rear sights. It was basically intended as a less expensive alternative to the Colt Python,
The records I have show a Colt Cobra with that serial number made in 1974.
The Agent was a variant of the Cobra. It was finished to a lesser degree and had less expensive grips. The bottom of the grip was slightly shorter than the Cobra's. The Agent was available only in 38 spl and a 2-inch barrel
That Colt python was made in 1969.
That Colt python was produced in 1981.
Your colt python was made in 1961.
your colt cobra was made in 1968.
Do you have a colt python?
If the Colt cobra's serial # is 25400LW, it was produced in 1953.
What letter or letters does your Colt cobra have? From 1950 to 1977 the Colt cobra had letters either after or before the serial number.
Your colt cobra (first issue) was made from 1950-1972.The value is going for between 120-250 dollars.
Your colt python was made in 1975.
That Colt python was made in 1975.