You must make a declaration on the site troov.com/marseille by filling at least the 3 following search criteria:
the place of the loss (in the park, in the street, in the museum…)
the date (today, yesterday or check the box on the calendar)
the type of the object
To facilitate the search, you can add a photo, a description such as a detail about the key ring (color, name written), the number of keys… This is a service offered by the City of Marseille, you will find more information about this service here.