:::: PS. It seems equally rough for me to say things about Grimme 1972 without looking at it. So I have now secured a copy. Pages 2-3 explain that "in diesen Katalog wurden auch Stuecke aufgenommen, die zum Teil nicht zum "Schatz" des Aachener Domes zu zaehlen sind, die aber dennoch in einer formalen und geistigen Beziehung zu ihm stehen." (pieces are also included in this catalogue, some of which are not part of the "treasure" of Aachen cathedral, since they nevertheless have a formal and spiritual connection to it). He lists these items as the Roman objects (wolf, pincecones, sarcophagus), items once owned by the cathedral but now in other collections, the Ambon of Henry II (explaining that he included it in the book because new information had been discovered about it) and the Barbarossa chandelier.