REMOVE

1. vessels (containers)
2. Zhou

WHAT

1. zun (ritual vessels) (2)
2. you (ritual vessels) (1)

WHERE

1. China (nation) (3)
2. Shanghai bo wu guan (3)
3. Shanghai, China (3)

WHO

1. unknown Zhou (3)

WHEN

1. 5th century BCE (3)
2. 6th century BCE (1)
3. 7th century BCE (1)