Marble. Carved by an anonymous artist around 1118 in marble "serpentino".
Marmo serpentino.

Marble, detail on pulpit.
Marmo, particolare.

Carved by an anonymous artist around 1118. This figure represents Guglielmo da Volpano from Lombardy.
Marmo, particolare del pulpito scolpito da un maestro anonimo intorno al 1118.