Proofhouse.com has Colt sn tables.
your colt cobra was made in 1968.
1951
About 1952.
it was made in 1986 it was made in 1986
No serial number provided.
Your best bet it to call Colt.
Made in 1969.
Impossible to answer without the serial number.
The King Cobra started production in 1986 and was discontinued in 1992. the King Cobra returned to Colt's product line in 1994. It was dropped a second time in 1998 from Colt's product line.
Your colt cobra dates to the year 1969.
Don't know value, but made about 1975.
1974. All Cobra and Commando revolvers made that year began with F6 . . .