Four distinctive African flags currently in the collection of the National Maritime Museum in Britain were flown in action by Itsekiri ships under the control of Nana Olomu during conflict in the late 19th century.
Empat bendera khas Afrika saat ini dalam koleksi Museum Maritim Nasional di Inggris dikibarkan dalam aksi oleh kapal Itsekiri bawah kendali Nana Olomu selama konflik di akhir abad 19.