According to various sources, they are used for purely decorative reasons or to scare away other birds. It displays a flaming heart pierced with arrows, a symbol of love, but more precisely, taking up the spiritual idea of transverberation, the stage of penetration of the faithful by Christ, of purification. The object is dated 1770, and bears the mention "AUX ARCHETS", likely testimony to the place of production, south of Nevers, in Berry, in the hamlet of Archers / Le Châtelet, a pottery hamlet present since the 17th century, and accessible today via a museum.
This testimony is unique although in the 18th century there were around ten pottery workshops in the surroundings of the hamlet. Such pieces are visible in the collections of the Nevers earthenware museum, but without such a mention attesting to the geographical production.