Final answer:
The object that reveals the clergyman's identity is hinted at through symbolic elements of his attire and accessories in artwork, reflecting the tradition of interpreting visual representations as narratives.
Step-by-step explanation:
The object responsible for the revelation of the clergyman's identity appears to be related to the various hints and symbols associated with his representation in artwork. This could include his attire, such as the sleeveless cloak, the pilgrimage badge in his cap, or other items like his gloves and the embroidered bag at his waist.
Each element of the clergyman's depiction—be it in paintings or sculptures—may provide a clue to his identity, echoing the tradition where the faithful would interpret religious stories and figures through 'a sermon in stone', as described by Bernard of Clairvaux.