A group of five brush rests


All rendered as a line of mountains, the first two rock crystal examples carved asymmetrically in a more naturalistic shape; the third and fourth potted from crackle glazed porcelain in a more stylized arrangement of five peaks in arching section; the fifth carved from jade of dark gray and russet color mottled in subtle cloudy inclusions. 4 1/4 x 2 x 1/4in (10.8 x 6cm) dimensions of first and biggest