This is a ceramic piece, likely Tamba-Tachikui ware (Tamba ware), with a charming atmosphere. Features: The natural glaze has melded together, creating a deep color, and the unevenness and rough texture of the surface are characteristic. It's a distinctive and wonderful vessel. Based on the described features (natural glaze, deep color, uneven and rough texture), it can be said that this work perfectly embodies the representative beauty of "Tamba-Tachikui ware (Tamba ware)." Artist's mark present.