The breaking up of the wall-face into horizontal zones was a device familiar to the ancient East. In the main gateway of Sargon’s palace at Khorsâbâd the wall is divided into a high orthostatic podium, decorated with reliefs, and a brick superstructure diversified by vertical flutes and rectangular recesses.[271] In the interior of the palace, the court of the ḥaram shows a similar disposition, except that the podium is of enamelled brick, not of stone.[272] The upper part of the walls is in no case preserved. On Assyrian reliefs it is not uncommon to find a horizontal band along the top of the walls below the crenellations;[273] but the nature of the upper zone or zones in decorated façades such as those of Khorsâbâd is a matter of conjecture. Concerning Chaldaean wall decoration we have little evidence. The building on the Wuswas mound at Warka, of which Loftus published a sketch,[274] has recently been re-examined by Dr. Jordan, who believes it to be post-Babylonian.[275] The walls of the temple of Bel at Niffer were decorated with shallow buttresses, while the gates bore resemblance, both in plan and decoration, to the gates of Khorsâbâd.[276] The gateway of Gudea at Tellôh has the same doubly recessed rectangular niches that have been noted at Khorsâbâd, but they do not seem to have been grouped in panels, and the plinth is reduced to insignificant proportions.[277] It is significant that in the post-Babylonian construction at Tellôh both the rectangular niche and the flute are present, and it may be surmised that the walls of Wuswas, with their recessed and fluted panels placed one above the other, represent an ancient scheme. It is a scheme which may be compared with that of the façade of Ctesiphon (see below, p. 134). At intervals groups of recessed niches are carried up continuously to the height of two registers of panels, just as in the two lower zones at Ctesiphon the engaged columns embrace two registers of arched niches. But at Ctesiphon we have architectural forms borrowed from Hellenism instead of the surface decoration (recess and flute) of Chaldaea and Assyria.