The censor from Trier of the 12th century is an splendid exemplar of the lost-wax casting process for bronze. In this image of a city - an allusion of Jerusalem as the celestial city - King Solomon sits on his lion throne at the top. The figures on the next level are all Old Testament patriarchs who prefigure the sacrifice of the Eucharist.  Visible in the front is the priest Melchisedech who offered bread and wine to Abraham.  The other figures are Abel offering his lamb. Abraham about to sacrifice Isaac, and Isaac blessing Jacob. (Viollet-le-Duc, Mobilier 2:pl.30) back to "worship"