This is a Chinese Cloisonne and Enameled styled, Brass looking Lidded Box or Tea Caddy that can be used for any trinkets.
It's Stamped "China" in the bottom of the lid and also on the bottom of the canister.
That helps to authenticate its age of being somewhere around the turn of the century, most likely 1895-1915 at latest in style.
It measures 4" tall and 2" square.