Chinese Panda Childs Tea Service, Cups and Teapot

This is an really wonderful 7 piece Chinese panda child's or miniature tea service. It has the 7 teacups and tiny teapot with lid all decorated with pandas and bamboo and signed with Chinese symbols. I do not know what the words mean. It looks like very good delicate bone china and is in excellent condition, no cracks and no chips and no wear that I can see. the cups measure 1.25 inches tall and 1.75 inches across the rim. The teapot is 4.5 inches spout to handle and 2.5 inches tall. It comes in the original box with looks vintage, but I don't know the age, it is an auction piece.