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