Franz Porcelain Bamboo Songbird Vase. Made of fine porcelain sourced from Chinese clays. Each piece is hand made using the ancient Chinese art of porcelain undercutting, the most difficult form of porcelain sculpting. Franz pieces are never mass-produced. Completely hand made and hand painted. Franz porcelain is award winning with beautiful design and craftsmanship and can be found in the finest stores and in museums.