French An XIII conversion?

[rickystl]

Don't think I've ever Posted this pistol. So maybe this Thread would be a good time.
This appears to be a BELGIUM copy of a French AN-XIII Pistol. Note the iron mounts versus brass mounts as with the original French pistol. The same Belgium proof mark per above, is on the top of the breech area of the barrel.
This is the only IRON mounted copy I've ever seen. Sort of tough to date this one. But probably made during the same time period.
Rick.