I love this thing, both as an object, and for the thinking and making process it represents. Like other puzzle cubes (I'm listing a few more modern Japanese versions I just picked up as well), each piece has its specific place, and is taken apart, and put back together, in a certain order. This one is wonderfully rustic in its construction, with the pieces fitting together by way of posts and holes but my favorite thing is the numbers carved across the joints where the pieces meet, providing a guide for how it goes lest one get stuck (especially good as it is really not an especially challenging one to solve.)
Clearly quite an old thing, with some dry rot to the wood in one area on one piece and small dings and scuffs all over. Approx 2 5/8" on each side.