Nicola di Maestro Antonio
Annunciation Triptych: Detail, St. John Gualbert

Here we see the full set of this saint's attributes: tawny-colored habit, tonsure, hand cross, and what appears to be a crozier with an unusual tau top.

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Photographed at the Ducal Palace by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.