Crescent moon

This is a golden wood crescent on the vault alongside the boss from which the canopy of the shrine may have been suspended.  It may have been a trophy brought back by victorious crusaders and installed here around the time of the translation of Becket’s remains to the shrine.  It could also be part of a lost painting of the Virgin Mary, standing with a crescent moon at her feet, set above the shrine.

Crescent moon in ceiling of Trinity chapel