This item appears to be a vintage yellow "Mun Shou" longevity porcelain tea cup saucer, decorated with traditional Chinese characters and floral motifs. 

• Design: Famille Jaune style featuring a yellow background with green scrolling foliage, purple flowers, and red Chinese characters. 

• Characters: The characters on the saucers typically include "Wan" (萬), "Shou" (壽), "Wu" (無), and "Jiang" (疆), which together translate to "Boundless Longevity". 

• Manufacturer: The stamp in the center indicates it was produced by the Jatung (周大) company