My father was stationed in “Occupied Japan” in 1945/1946 and brought this home with him. I had a difficult time finding information about this item on the internet, so this is my best guess.
It includes 3 copper pieces, a leaf-shaped tray, a matchbox holder (decorated with flowers) and a small container w/ lid (decorated with dragons & branches) probably for cigarettes; I think it is missing a circular ashtray box; not sure.
A similar 4-piece tray is listed on eBay for $153.99 (see photo); I’m asking only $50 or best offer.