Because he had been a member of the Nazi Party and served in a relatively high position in the army during the war, Schramm was removed from his university post. As denazification waned in the late 1940s, however, he was rehabilitated and returned to his professorship in Göttingen. Between 1954 and 1956, he produced what was perhaps his second most significant work, after "Kaiser Rom und Renovatio", titled "Herrschaftszeichen und Staatssymbolik" (Signs of Authority and the Symbolism of the State). "Herrschaftszeichen" was a major survey of the representative art of medieval rulers or symbols of their power, including their regalia, seals, coinage, armaments, clothing, and other objects. These objects and their history were catalogued in more detail in a book Schramm authored together with the eminent art historian Florentine Mütherich, "Denkmale der deutschen Könige und Kaiser" ("Monuments of the German Kings and Emperors", 1962).