CVA sold a lot of models on a limited basis. They had some models that I doubt were ever included in the catalogues and some in the catalogues that few have ever seen.
They sold a Zouave reproduction, ONE year. I don't know of anyone that ever saw one in person.
The prospector pistol. They also had a hawken pistol, which is uncommon.
Right now Ardessa, the Spanish Armory that made much of CVA's later muzzleloaders and makes the Traditions muzzleloaders offers an underhammer pistol. Traditions doesn't sell the underhammers.
From what I remember of the 32 CVA pistol, it had the usual cheap 2nd style percussion lock with no fly or bridle and a stock that was slightly modified from the Kentucky pistol. the other parts were straight from the Kentucky pistol, trigger and guard, sights.
I also read somewhere that CVA sold a few really high end Siber pistols, from Germany I think.
There are four or five percussion lock styles throughout all of CVA muzzleloader pistols and rifles. The second style was used on most of them. From the outside it looks identical to the locks used on the frontier rifle, but the interior is different slightly. I seem to recall that the same main spring was used for all the locks. The fist style lock had no sear adjustment screw and was used with a breech bolster. The second style was a Maislin style lock plate used with a drum and nipple, but only had a sear adjusting screw. the third style was the maislin lock plate for the drum and nipple, but it had a fly and bridle in the lock. The hawkens and mountain rifles had an even better lock.