Hi, I got the pictures, thanks.
The one in the white is a French Model 1873 service pistol. If it is in the original french chambering then it is chambered for 11mm French Revolver. It should have a .451" barrel (groove to groove). It is a bit of a pain to load for. Brass can be made from 44 russian/special cases, and I sell the proper heeled bullet for it. It looks to be VG externally, if the bore and mechanical condition are the same then I'd guess you could sell it for $1000-$1400.
I don't know much about the 2nd pistol. It could very well be a Galand, but I am not 100% sure about that, it could also be a Belgian clone. it is not a model 63, 68, or 70 galand. Later models from 1872 on did not have the open top. But the belgian makers make all kinds of variations. If it is a Galand it might have a maker's mark of the intials "CG" as well as the Liege proofmarks. Galand was French but his guns were made in Liege, belgium. The swedes used a very similar looking Galand revolver (called the Swedish Model 1863) but that was chambered 11mm pinfire. Galand made open top revolvers in the 1860s and early 1870s. Yours looks like it was from that era and I'd speculate it was a commercial build considering the polished blue finish and the scroll engraving which a military revolver would not have had. The triggerguard ius definitley belgian made, about 20 different belgian makers and a few british used the same t-guard. If it is chambered in 450 Adams(aka 450 revolver) and in good shooting condition then I'd say as rough guess it is worth $600-$1200. I'd really like to get a closer look at this one, it is quite interesting.