Possibly from 1920's

About 6 inches tall, 5 inches wide

See photos with a Japanese beer can and ruler

For your decoration, wabi-sabi style, where natural imperfections and organic forms highlight the essence of beauty !

However you want to position it on your desk or shelf.

I think the stopper/lid is just a design feature.  There could be some mysterious tunnels inside ! (see photos)  The shape resembles a hand fist/fingers, mountain with a high peak, or a tobacco pipe, ....