The wall art at Chaire-à-Calvin consists of a frieze sculpted in situ and a decorated block 

This decorated block discovered by Pierre David in 1929, shortly after the discovery of the wall art, is now in the collections of the Musée des Beaux-Arts in Angoulême. The wall sculptures, which were open to the elements, were gradually covered over by a series of mineral and plant material deposits. Their visibility was also affected by modern human intervention.