"Quatrefoiled Gilded Copper Plaque, 15th Century"
Mercury-gilded copper quatrefoil plaque, with the image of a saint holding a cathedral in his right hand above a book, surrounded by clouds with falling water drops and a ribbon with the words in the final part there are mountains with houses and a river. end of the 15th century 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato