This is a rather old trick money box that I got in Hakone. It can be opened in about four steps. I was told it was Yosegi-zaiku (mosaic woodcraft) when I bought it in Hakone, but I'm not sure of the details because there is no instruction manual. Please take a good look at the images as I don't know the exact specifications. 【Size】 Approximately Width: 14 cm Depth: 9.5 cm Height: 15.5 cm There is discoloration, scratches, and dirt due to aging. Two small nails have come off, and one of them is probably inside. (Image 10) The key is loose, but it can be opened and closed. The opening sequence is as shown in the images. There are also some gaps between the wood. I don't know if this was the case from the beginning or if it happened over time. I have cleaned the dirt to some extent, but please understand that this is an old item that has been stored privately. Thank you for your purchase.