Nabopolassar himself.[140] However that may be, the grave is certainly of the early Neo-Babylonian period, and the architectural design upon the gold plaque may be taken as good evidence for that time. [Illustration: FIG. 22. GOLD PLAQUE, WITH ARCHITECTURAL DESIGN, PROM A NEO-BABYLONIAN BURIAL. The engraving on the plaque shows a city-gate with flanking towers and stepped battlements. (Enlargement after photo, by Koldewey.)] The plaque formed the principal decoration in a chain bracelet, small rings passing through the holes at its four corners and serving to attach it to the larger links of the chain. On it the jeweller has represented a gate with an arched doorway, flanked by towers, which rise above the walls of the main building. Each tower is surmounted by a projecting upper structure, pierced with small circular loopholes, and both towers and walls are crowned with triangular battlements. The latter are obviously intended to be stepped, the engraver not having sufficient space to represent this detail in a design on so small a scale. The outline is probably that of a fortified city-gate, and it fully justifies the adoption of the stepped battlement in the reconstruction of military buildings of the period. Whether the temples were furnished in the same manner, for purely decorative purposes, is not so clear. Some idea of the appearance of one, restored on this alternative hypothesis, may be gathered from the elevation of the unidentified temple known as "Z," which is given in Fig. 24. [Illustration: FIG. 23. GROUND-PLAN OF THE UNIDENTIFIED TEMPLE KNOWN AS "Z." A1: Main Court of temple. A2, A3: Subsidiary Courts. B: Ante-chamber to Shrine. C: Shrine. E1, E2, E3: Entrance-chambers, or Vestibules, to temple, d, c2, c3: Service-rooms for Shrine, _s_: Dais, or postament, for cult-statue. 1-3: Porters' rooms. 4, 5: Chambers with access to narrow passage, possibly containing stairway or ramp to roof. 6, 7: Priests' apartments or store-rooms. 8, 9: Entrance-chambers to residential quarters. 10-15: Quarters for resident priesthood around N.-W. Court. 16: Entrance-chamber to Inner Court. 17-21: Quarters for resident priesthood around Inner Court. (After Andrae.)]