"Depiction of the Shinkosen Tribute and Trade Ships"

[Enlargement #1] [Enlargement #2] [Enlargement #3]

The route taken between Naha and Fukien is shown in red lines. The shapes of islands, dangerous reefs, distance, and rudder direction are all written in. The area to the left shows Fukien harbor. In the right vicinity, 3 western ships are depicted.
From the Okinawa Prefectural Museum Collection