With stamp on the base of six characters 大清宣統年製 made in underglaze blue from the Xuantong period.  The shape of the vase is square and it is made of white. decorated in relief on each facet with the "Eight Trigrams". is covered entirely with a pale bluish-green glaze and covered by a layer of glaze.  Size: 28 x 13.5 x 13 cm; Mouth diameter: 9 cm; Base diameter: 11.2 cm. Provenance: European private collection.