u/F4UCorsair1942

Wondering if anyone can identify the model or caliber of this old Belgian, (not French, thank you to the guy on my other post) revolver. Also, it seems to be DAO, i haven't opened it up yet but it times perfectly in DA and it doesn't seem to try to hang up in SA. Would love to get it cleaned up and maybe even put a couple rounds through it. Great craftsmanship though!

Bought this old French(?) Revolver that I belive to be from the late 1800s. I'm curious to see if any of you have any info on it and know a possible caliber, the bore is smaller than .38/9mm. TIA