This is one of the boxes from my own collection. I got in in Russia. Boxes like this one is made in Paleh, so this is how they are called, Paleh jewelry boxes. They are hand painted, so all of them are unique.
You will never guess how they are made unless you know! They look and feel like hardwood. They are not though. Hardwood could lose its shape over time. They do not want that to happen, of course! They want these boxes to last forever, if possible.
They are made of Papier-mâché! I have found an article on how they are made. It is short, but translated by Google-translation, so reading will be funny :) You may reed it here.