Theo Schoon and Len Castle, stoneware vase, with umber glaze and sea shell fuming, 1999, ceramic, impressed Len Castle mark to base and signed with Theo Schoon?s initials, 16 x 20 x 14 cm, illustrated: Douglas Lloyd-Jenkins et al., Len Castle: potter (Ron sang, 2002), p. 177. Provenance: Private Collection, Auckland.