James Spacek book on Hi-Standard
What model?
Depends on the model and serial number.
1978
what is the SERIAL NUMBER ??????????
Will need model name to answer.
1972
No known sn data published.
Would need model name to answer.
The date of manufacture is determined by the Colt model type and serial number. See: www.proofhouse.com/colt/index.html
You will have to provide the name of the maker.
Impossible to do with just the sn.
No serial number provided.