Maiko (Apprentice Geisha) Momotaro, dancing with a mai-ogi (dancing fan), her obi (sash) decorated with dragons and pearls.
“The dragon is often depicted surrounded by little flames and running after a [spherical] jewel, tama, sometimes having caught it in its claws. This is the jewel of omnipotence, the jewel that fulfils all desires, often represented in Far Eastern art. Some authors are explaining this jewel as the sun hidden by rainclouds. Others… hold the opinion that it represents the thunder.”
According to “The Animal in Far Eastern Art” by T. Volker, first published 1950, page 64.