Aguila Blanca seems confused about the corporate names, so with apologies to Hawg, I'll insert them in his description in an attempt to clarify:
Colt's Manufacturing bought the parts from Uberti for the second gens. Colt's Manufacturing assembled them and did the final fit and finish. Colt's Manufacturing warranted them and will letter them. Those are considered to be Colt's. The third gens were made by Colt Blackpowder, Inc. using Uberti parts under license from Colt's Manufacturing but Colt's Manufacturing never touched them. Colt's Manufacturing didn't warranty them and won't work on them and won't letter them. Those are not considered Colt's except for a few that say they are Colt's because they have the Colt name on them and the rampant colt. Colt's Manufacturing merely sold the rights to the name and logo.
Colt's Manufacturing Company produced the 1st and 2nd Generation black powder revolvers, as Hawg described. Colt Blackpowder, Inc. produced the 3rd Generation black powder revolvers, as Hawg described. Colt Blackpowder, Inc. was not and is not affiliated with New Colt Holding Co. in any way; it was a separate corporate entity which worked under license to Colt's Manufacturing. New Colt Holding Company did not exist when Colt Blackpowder, Inc. was in operation.