A toss up between an old ASM dragoon and a signature series 1860 Army. The ASM was a gift from my dad in about 1970 and was made in 1968. It was my first cap and ball revolver. It fully lived up to what I have since read about ASM QC. Nice on the outside, often crap on the inside.
I ultimately replaced the all the internals plus the hammer and cylinder. Fixed the loose arbor. The arbor hole in the barrel lug intersected with the slot milled for the loading lever so you can see the arbor in the hole if the loading lever is removed but that did not affect function. The arbor is about .25 inch (!) short but it is conical anyways and bottoms out on the entrance to the arbor hole in the barrel lug. The wedge enters from the right like a Walker which males loading on the gun awkward. I have seen photos of three other early ASM dragoons set up the same way but I think it's pretty rare. Now it runs and shoots OK Oh, and the nipples in the original cylinder were too small for ANY brand/size nipple I was ever able to try. Maybe meant for size 9 caps? And the original chambers were over sized. The new cylinder has new stainless nipples that work great. No cap jams whatever.
As for the Colt signature series...
A TOTALLY disappointing piece of crap. It had tool marks on the screw heads and even on the face of the recoil shield, rough internals, excessive cylinder gap, short arbor (loose, natch), timing off. I'm in the process of fixing it. It LOOKS real good handing on the wall with nice bluing and case hardening and the fluted cylinder that I like. I want shooters, not wall hangers. It is fixable but not what I expected from the signature series Colt. QC was very poor.