Spanish Jo.Lo.Ar in 9mm Bergmann - very unusual pistol, unlocked breech blowback in a fairly powerful cartridge. The lever (called a palanca) attached to the slide pivots down so it can be cocked one handed, as seen here. Because of that, it has no safety or slide hold-open - the lever on the sideis to tip up the barrel for loading. Kind of a mystery in that the year of proof code is for 1928, but the actual proof mark was introduced in December 1929 - suggesting it spent over a year at the proof house.
A Belgian Nagant 1878-86 revolver in 9.4mm, at some point issued by the Belgian Customs Service (Douane Belge), but likely issued to the Belgian army in WW1 as well. Has the double L crest for Leopold II, indicating government issue. The 1878-86 was an improved version of the original 1878, incorporating simplified lockwork with a rebounding hammer so it could be carried with all 6 chambers loaded. Shown with the common Russian Nagant 1895 for scale / comparison.