about 1953
1951
Proofhouse.com has sn tables.
That Colt challenger was made in 1952.
A Colt challenger with that serial number was made in 1952.
64210/c
about 1953
It was made in 1953.
about 1953
Charger, Challenger, Coronet, Colt, Caliber, Caravan
1952
The Colt Challenger pistol with the serial number 2391-C was manufactured in the early 1950s. Colt typically produced the Challenger line between 1950 and 1956, making it likely that this particular pistol was made during that timeframe. For a precise manufacture date, consulting Colt's production records or a Colt historian would provide the most accurate information.
1968