Metallic spheres found on a beach in Marie-Galante

Summary

In March 1976, a restaurant manager on the island of Marie-Galante alerted the gendarmerie after discovering two shiny spheres partially buried on the beach, 14 metres apart. Each was roughly one metre in diameter and covered in a remarkably tough metallic coating. One bore the inscription 'H 476 AC'. When recovered the next day, the spheres turned out to be two halves of the same object.

Before they could be properly examined, the mayor moved them to the town square for public display, disregarding the gendarmerie's advice. The case involves no aerial sighting but rather the recovery of metallic objects of undetermined origin.