At first I thought this might be a box made to hold playing cards, but it's a bit too small for that, so maybe good for a box of matches, or a small stash of something, or just a few little treasures. And someone certainly put some love into it, with heart on one side, three leaf clover on the other, and sweet chip carved borders on both sides. The slide top is a bit clunky but works fine and holds snugly closed.

3 7/8" x 2 7/8" x 1 1/8". Varnish finish, and in very good condition. I don't think super old, maybe mid 20th c.