Hi mowin,
First off, we need better pics of the nomenclature/stampings/serial numbers on each pistol. It would also be helpful if you provided a picture of the manufacture date code (located on the left side of the frame: it will be alpha letters within a rectangle).
Having looked at the pics you posted, both are modern Italian replicas because of the proof stamps.
The cased pistol appears to be a stainless Remington New Model Army (known in some BP circles as an 1858 Remington, which it is not). Without any other pics of the stampings, I can go no further. Fingers McGee is always interested in stainless C&B revolvers. I hope he reads your post.
The brass-framed 1851 Colt .36 is a copy of the Confederate Griswold and Gunnison, having the round Dragoon-type barrel rather than the 1851 Navy octagonal barrel. High Standard made several of these (usually cased with a belt buckle and will be stamped G&G on the barrel lug) but early Navy Arms pistols may entertain the same characteristics, although not marked as such, and were basically made as shooters and, at the time, not as reproduction collector items.
One of your thumbnails appears to be of the barrel of a side by side shotgun and another of your RV. I'm sure you did not mean to include them.
You may have some gems, or you may not. I/We need better pics and info.
Both pistols appear to be in nice shape.
Eagerly awaiting further pics.
Jim