Among the coins of the medal collection of the Bibiothèque Municipale de Besançon, there is a silver coin depicting Herô and Leander, whose legend takes place between Sestos and Abydos, on the two oposite sides of the Hellespont. Taking into account the success of the legend in litterature and art in the Ancient times leads to examine the question of the coin's provenance. It then appears that the coin is a modern artifact, and could have belonged to the Pierre-Adrien Pâris collection.