Can't identify the mark of this nice dish

[ssbill]

I know you can't identify chinese porcelain only with the mark.  The bottom rim and the decorations could be mid or late qing . I don't know which dynasty. Can someone help?

[Stan]

I am not sure what the mark say's but it looks very Japanese and marks like these are modern in my opinion, the foot and decoration looks recent in my view.

[peterp]

???  (Gensho-gama). Gama means kiln in Japanese. Seems to be another modern kiln.