Help identify Chinese Export marks on cup

[tmac869]

Hi, is anyone able to identify the marks on this cup? We think it may be Chinese export.
Thanks!

[shikiamondo]

Hello there,

Just very vaguely I could read '鳳祥' (Feng Xiang), which is a well-known silver retailer based in Shanghai since late 19th C.

Hope that helps.

KR,
Connor