OK, it's an unusually nice, colorful one. My guess it's from circa the 1930s Japanese occupation of Beijing, seeing as how the eBay seller is Japanese and they're listing it as an ojime.

eBay item 301593235744

Criminy, it was 'way back in October last year that I wrote about these? Time flies...

http://www.beadiste.com/2014/10/puzzling-evidence-chinese-4-toed-dragon.html