Large Green-Glazed Cast Ceramic Dragon with Pin-Back

It weighs 39 grams. The impressed mark is all but illegible to me, but perhaps it will be familiar to some of y'all. The color is green, but of an unusual hue...I really like the way it's thick where it flowed in the firing, adding depth to the shallow relief of the casting. The one visible foot seems to be 4-toed, counting the dew-claw at rear; does that have any relevance? It looks Chinese, rather than Japanese, to my eyes. Is that a 'pearl' at the end if its nose...or a human face? I have no recollection of its acquisition details...thanks for lookin'!

 

From further out it looked like a Two Fish mark.