National Match serial numbers have NM, MR or 70N as part of the serial number. If the serial number is 32597NM; 1969. If not, possibly a NM slide was placed on a 1913 frame.
The Colt Gold Cup NM .45 with serial number 15051 NM was made in 1965
Proofhouse.com has Colt sn data.
1974
1983
Colt gold cup national match .45 with that serial number was produced in 1961.
where was the colt gold cup national match serial #70n51714 made
approximately 1974
1962
Goes beyond published data, you will have to call Colt
You will have to call Colt to find out.
The Colt Gold Cup National Match with the serial number 70N17278 was manufactured in 1970. This model is part of Colt's line of high-quality pistols designed for competitive shooting.
The Gold Cup serial number 86xx refers to a model produced by Colt, likely within the timeframe of the late 1980s to early 1990s. Colt's Gold Cup series has a history of being manufactured since the 1950s, but specific serial number ranges can pinpoint production years more accurately. For precise information on the production year of serial number 86xx, consulting Colt's serial number reference guides or contacting Colt directly would provide the most accurate date.