From top left clockwise :
Kawai Kanjirō Stoneware mask c.1960 w20.0×d8.5×h37.4 (cm) / Bernard Leach Slipware dish 1920s-1930s w27.5×h4.5 (cm) / Kawai Kanjirō Yellow glazed bowl with combed decoration c.1955 w29.8×h6.7 (cm) / Hamada Shōji Square Plate with Blue Drip Pattern 1950's w45.0×d31.0×h9.8 (cm)