Porcelain Ink Pot & Tray-Japanese or European - Mystery Mark

I recently acquired this delicate set which I believe is an ink pot and tray. My initial assessment was that it was Japanese but the pattern also reminds me of Herend of Hungary or Augarten of Austria. The only mark is on the tray as shown in photo but I can't identify. As for size, the tray is about 8" long. Welcome any/all opinions. Thanks