around 1965
about 1977
Proofhouse.com has Colt sn data.
Produced around 1968.
36 years old
Made in 1978. It is about 31 y.o.
Proofhouse.com has sn data.
About 36 years old, made in 1975.
Blue Book of Gun Values or one of Wilson's books on Colt can help
You must call Colt to find out.
@ 1959
If you have not made a typographical error in the serial number, the piano was made before 1900.
What is the age of a Colt rifle serial SLD25319