At some time after her wedding, Eutropia was probably the owner of a ship. A sign made of bronze that has been in the library of the Department of Classics at Harvard University since 1961 might have come from the ship. It was probably a "No Trespassing" sign. Its purpose was to keep people off the ship and to show that the ship was Eutropia's property. The bronze sign came from Ostia, the port of Rome, and the ship was possibly used for the transport of grain supplies to the capital city. The ship may also have been a barge on the Tiber River (the river that connects Ostia with Rome) or a boat used for private leisure.