Another survivor!
In 1890, an electric toy yacht, its miniscule motor and battery installed by Trouvé, was shipped out to Japan as a gift for the young Prince Yoshihito, later the 123rd Emperor of Japan, to play with on the pond at the Aoyama Detached Palace, Tokyo.
Its duplicate, now owned by Monsieur Didier Kuhn, has survived. May we continue to retrouver Trouvé!