n6c410800
What year is serial number JAB0139091
about 1951
about 1948
No serial number provided.
That Colt super .38 was made in 1948.
What about it? Go to proofhouse.com with serial number for date of manufacture.
about 1948
on the side of the frame
Based on proofhouse.com. the super .38 starting with serial number 13650 was made in 1932 so your 13xxx was made either in 1931 or 1932.
Proofhouse.com has Colt serial numbers you can look up
You can find serial number data on Ruger's web site
Colt combat commander with that serial number was produced in 1968.