Can't be answered without knowing maker's name
Made in 1874.
Made in 1874
If the serial numbers starts with a "G", you have a Colt Peacemaker Buntline. The serial number you list has to two more numbers than it should have. If the sn is G62260 - it was made in 1973 If the sn is G26028 - it was made in 1971 A New Frontier Buntline would have NF in the serial number.
1966
1972
Generally, yes, if you submit the make, model & serial number of the revolver.
about 1971
1971
1975
On the frame and the grip frame.
Proofhouse.com has sn data.
Made in 1975.