Vietnamese Bleu de Hue Lot of (4) Porcelain Tea Cups (Have Four Character Markings) - These porcelain tea cups are decorated in underglazed blue with an ornate landscape scene. The bottom of each cup bears a four character marking in underglazed blue. his piece has excellent investment potential, as it is thought by experts around the world and avid collectors that due to the rapid modernization of Vietnam, Vietnamese antiques will within the next ten years be more valuable than Chinese antiques. According to some of the most expert collectors in the world, what used to sell for hundreds are now selling for tens of thousands. Measurements: 2"H x 2.5"W.