The Clotilda

According to Al.com, there are no known images of the Clotilda, but it was very similar in size and rigging to the slave ship Amistad, which is shown above  in an oil painting.https://www.al.com/news/2019/05/clotilda-the-last-american-slave-ship-has-been-found-alabama-historical-commission-announces.html

After a hopeful find in 2018 followed by disappointment, the true sunken ruins of the Clotilda were positively identified in 2019. The ship, which brought the last known shipment of slaves imported from Africa to America, slipped up Mobile Bay on the eve of the Civil War
Reporter Ben Raines chased the story and brought it to national attention which drew the resources needed to complete the quest.

https://www.nationalgeographic.com/culture/2019/05/clotilda-the-last-american-slave-ship-found-in-alabama/

https://www.al.com/news/2019/05/clotilda-the-last-american-slave-ship-has-been-found-alabama-historical-commission-announces.html