Chicken cup

[jacqueline]

Hi everyone,
I have a cup like this from my grandma. Please help me. Thank you very much.

[peterp]

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.

[jacqueline]

Thank you very much.

[Stan]

Not to mention the period one is Ducai, not Wucai and the mark has a double square border.