And here is Monsignor Harry Entwistle’s coat of arms as a Protonory Apostolic:
Note the violet galero and red tassels of the Protonotary Apostolic and the personal arms (including St. Chad’s Cross) impaled with the arms of the Personal Ordinariate. The crozier is that of an Ordinary who is not a bishop (cf. the arms of a territorial abbot).
This is the first PA coat of arms I have seen.