You need to call Colt. That sn is beyond the published lists.
You will have to call Colt to find out.
You will have to call Colt
Serial number is on the frame.
You need to call Colt
How can I find out what year Colt Combat Commander Mark 4 Series 80 was made?
You must call Colt to find out.
September 18, 1871
Proofhouse.com has Colt sn data. If not there, you will need to call Colt.
your colt mark IV series 70 national match was made in 1972.
Proofhouse.com has Colt sn data. If it's not there, call Colt and they will tell you.
1980-1983
proofhouse.com