The Mus ? ? e de Dieppe , also known as the Ceteau-Mus ? ? e , in the 15th-century chateau in the Rue de Chastes , has a good collection of model ships and carvings in ivory , dating from the 18th century when elephant tusks were a major import from Africa and Asia .
The 18th century model ships were purchased by the chateua in 2000 .