You will have to call Colt to find out.
1966
1953
about 1953
approximately 1979
Made in 1950.
january251910
You can look it up at Proofhouse.com
That would be 1977. 1978 Since 1977 started with serial number 70SC50201 and 1978 started with serial number 70SC57900 and the Commander in question is serial number 70SC57072, it would have to been manufactured in the latter part of 1977.per proofhouse.com
In 1976.
You will have to call Colt to find out.
You will have to call Colt. That sn goes beyond what has been published.
Late 1980s or early 1990s