Shop › Kurinuki Vase I, Black Vulcan Clay, White Slip & Manganese glaze Image 1 of 1 Kurinuki Vase I, Black Vulcan Clay, White Slip & Manganese glaze £65.00 Handmade by Jon Gardner in the Art House Pottery Studio. 24cm tall. Purchase Added! Handmade by Jon Gardner in the Art House Pottery Studio. 24cm tall.