Metallic luster low round porcelain flower bowl, art deco vintage mark, Czech or Japan

Metallic luster glazed flower bowl with old round marking only partially legible (the bottom underside of the bowl is scratched). We just can't tell if this piece is Czecho-slovakia, or vintage Japan - it could be either, really! But it's a very striking piece in an unusual color, showing little wear to the visible exterior finish, and no chips or cracks.

Item No. b01670