Regarding the longrifle, it's difficult to put a value on it. I suspect there is some distortion in the photographs, but the workmanship looks to be quite sound with fine inletting. Without a makers name it's hard to put a price on it. $1200-$1400 probably wouldn't be out of line.
The "buck and ball" rifle looks to be a bitsa gun, that is
a gun made up from parts of other guns. Given its stock style, this is a southern gun, probably post Civil War. That
lock is made up from pieces and the trigger came from a musket. Its a nice old gun and is a great piece of history. It's already up to $950 and will probably go higher.
The "French" trade gun actually looks a lot more like the guns that were made for trade in Africa. Similar to the guns traded in America, they were often cruder but just as functional. I'd want to see the proof marks on this gun because the stock shape is unlike the French guns I've seen.
This gun also lacks the usual sideplate and trigger guard seen on French trade muskets. It also seems to be equipped with an iron rammer, not usual on an Indian trade gun. It has either a bayonet lug or rammer catch on the muzzle--not a trade gun feature. I'd be careful here.
If you plan on firing these guns, only the rifle would appear to be safe to actually fire.
