Classy and timeless in form - this tea things we had been APPRAISAL. The high-quality merchandise comes from a workshop in Hanoi. Note to Celadon: Celadon - it is called with a transparent glaze pottery - has its origin in China and dominated by 7 to the 14th Century, the world of ceramics in Asia. In Vietnam, it is since the 13th Century produced. After kiln firing, the glaze has a pale gray, gray, green or olive color with fine craquelure.