Very hard to tell, but my guess is 寿龍 (kotobuki + ryu, could be read as Jūryū).
The first is the character for long life. The second is dragon. But...its just a guess. This mark doesn't show up in this site here, which seems to be something of an authority. Japanese Porcelain Marks
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.