In what kind of vessel is soy sauce traditionally served in China?

Just as we have salt shakers and pepper mills in the West, soy sauce is commonly used at the table in East Asian cuisine, and while I have seen traditional Japanese and Korean soy sauce implements, I have yet to come across what kind of bottle/bowl/etc. is usually kept on the table in China, which is where soy sauce originates. Can anyone please enlighten me? Thanks in advance! :)