Concordat between Pope Leo XII and Willem I Frederik; King of the Netherlands; Silver Medal. Obverse: facing chest pieces of two men within a band; cut: year. Reverse: radiant triangle with inscription in Hebrew letters between orange tree and two crossed keys; above inscription within circle of eight mrs.; Willem I Frederik (King of the Netherlands); Leo XII; Franciscus Johannes de Hondt; Bruges; 1827; silver (metal); striking (metalworking); d 4.7 cm x w 434 gr