A Chinese blue-glazed cong vase, of square form with a circular mouth and foot after an archaic jade carving, each side moulded with eight raised bagua bands, covered under a sky-blue glaze, six-character Xuantong mark, 29cm high 蓝釉琮式瓶 《大清宣统年制》青花楷书款 Condition report: Surface scratches.