buROCKracy

This is the flag of the Benin Empire.  From the Wikipedia:

The Benin Empire or Edo Empire (1440-1897) was a pre-colonial African state of modern Nigeria. It is not to be confused with the modern-day country called Benin (and formerly called Dahomey).

Don’t EVER confuse them with the modern-day country called Benin! EVER!!

Thanks to kottke.org for the find.