I was wondering what Generation they were. 3rd Gens or Sig Series have Sam Colt's signature on the backsrap. 2nd Gens have no signature and are between SN 4201 and 29150. If they are both 2nd Gens, the one with the rounded trigger guard is extremely rare ( somewhere around 100 made) and worth low 4 figures.
Fingers (Show Me MO smoke) McGee - AKA Man of Many Colts - Alter ego of Diabolical Ken; SASS Regulator 28564-L-TG; Rangemaster and stage writer extraordinaire; Frontiersman, Pistoleer, NRA Endowment Life, NMLRA, SAF, CCRKBA, STORM 327, SV115; Charter member, Central Ozarks Western Shooters
Cynic: A blackguard whose faulty vision see things as they are, not as they should be. Ambrose Bierce