Chinese underglaze blue porcelain brush pot, attirbuted to Wang Bu (Chinese, 1898-1968), of square section with lobed corners, each of the sides decorated with a scene in vivid cobalt blue, one of a gnarled pine, the second side of a finch perched on a branch and sealed 'Zhuxi', another of a bonsai pine tree set beside scrolls and a fly whisk, the fourth side of a flock of ducklings near a pond and sealed 'Wang Bu', the recessed base with a six character studio mark 'yuan wen wu guo zhi zhai' (small chip near base), 6.5"h