This gilded metal button is made by Albert Parent of Paris, around 1900.
It depicts Aesop's fable of the Stork and the Wolf.
The Wolf asks the Stork to pick out some food that is stuck in his teeth, and says that he will be rewarded. After the Stork has obliged, he asks for his reward and the Wolf replies that his reward is being able to say that he had his beak in the Wolf's mouth and has survived to tell the tale.