You must call Colt to find out.
@ 1959
Proofhouse.com has Colt sn data.
about 1977
made about 1969
around 1965
36 years old
Produced around 1968.
Made in 1978. It is about 31 y.o.
Proofhouse.com has sn data.
That Colt python was made in 1969.
That Colt python was produced in 1981.