Len Castle Stunning Blossom Vase this superb press-moulded pot of massive size with an opalescent blue Chun, also known as a Jun glaze spray-applied over a tenmoku glaze. As rice-straw ash which was traditionally used by Chinese and Japanese potters, a scarce commodity to these shores, Len experimented with pampas grass ash to produce his own Chun glaze with stunning results. Impressed cipher. 1980s. Height 54.8 cm. Width 47 cm. Depth 32 cm.