Round plaque (perhaps a mold) in terracotta, representing the coat of arms of the Count of Artois (three fleurs-de-lis) surmounted by the crown of Prince of the Blood, framed by standards and laurel branches, below the medal of the Order of the Holy Spirit, from the 18th century.
This plate is in good overall condition.
Please note: some chips on the edges, dirt and wear from time, see photos.