Hi everyone,
I have a cup like this from my grandma. Please help me. Thank you very much.
Pictures are too small, but anyway I couldn't possibly authenticate a genuine Chenghua chicken cup.
There is a real one here: www.sothebys.com/en/auctions/2014/meiyintang-chicken-cup-hk0545.html
Note that these cups usually have a specific shape and no foot rim, not the shape that yours has.
Thank you very much.
Not to mention the period one is Ducai, not Wucai and the mark has a double square border.