Vintage Royal Seal Art Glass Ash Tray Bowl Japan Swirl Marble Gray Yellow Orange

RARE Vintage Royal Seal Art Glass Ash Tray Bowl Swirl Japan Marble Gray Black White Yellow Orange Approx 5" in diameter x 2.75" tall I have researched this ashtray and cannot seem to find it anywhere! The Sticker on the bottom indicates it is a Royal Seal from Japan. If you have any information, please reach out to me!