black power or cartridge rounds? Colt made the first "practical" revolver, so this was the first commercially successful cartridge revolver. I can't say about black powder... but you should read this: http://en.wikipedia.org/wiki/Revolver <><><> The first Colt revolvers were black powder handguns. The self contained cartridge was invented later.
Proofhouse.com has Colt sn data.
Samuel Colt
In the USA
Your Colt Lawman revolver was made in the year 1972.
Colt Paterson, the revolver was patented by Samuel Colt on February 25, 1836 in the US.
38 cal colt's revolver sn 94764 what year was it made?
Your colt was made in 1916.
Call Colt
Ypur Colt new frontier SAA was made in 1962.
Made in 1995.
The Colt 6 shot revolver.