Thanks, Morgan. From what I can see (your photos are quite dark on my monitor) this is a Belgian version/copy of a Montenegrin Gasser revolver, six-shot, solid frame, bone grips. The barrel is probably shortened from original 9 1/2" which was about standard for this particular configuration (there are many versions, the most common being Belgian solid frame with 5-shot cylinder, barrel about 5").Also the extractor rod seems to be a replacement.
By the way, the name "Montenegrin Gasser" comes from the fact that in 1873 the Balkan principality of Montenegro introduced the Gasser revolver into its army, where it remained standard till WWI; it was owned and carried by most soldiers, not just officers. Montenegro bought only Viennese made revolvers, Belgian copies were purchased privately. Thousands of Gasser revolvers were also obtained by neighboring Albanians.
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