Glass box by Itoko Iwata, Japan

Interestingly this hand made box has a sticker on the base that states "Design by Itoko Iwata". I am quite sure it was made in the Iwata Studio but of course the studio employed other glass makers and the possibility is that Itoko did not make this box.
The base is made from a layer of white glass cased in clear that appears to have been moulded. There is no machining on the base or lip so good glass skills have been used to finish the box well.
The lid has been made from a red layer of glass with gold leaf pieces, cased in clear and probably moulded to shape. Again there is no polishing on the flats or edges yet it fits the base snugly and with little rattle.
It was possibly made as a cigarette case but I think it's 20thC when even in Japan cigarette use was becoming less, so maybe it's just a general purpose box.
It's about 13cm x 10cm x5cm.