Judging by the slide markings, my FN 1910 dates to the mid-to-late 1920s. Nowhere near as old as my old .32 Colts, but a respectable octogenarian nonetheless. As best I can tell, it's all original.
I took it out on the range today at Coal Creek Armory and ran some ammo through it, and it banged away happily without a hiccup, eighty-year-old springs and all. Despite the vestigial sights and the heavy trigger, it shot right to point of aim and would do so as fast as you could pull the trigger; of course, a pound and a half of steel doesn't move around much from the recoil of a little .32ACP cartridge.