The doors, both of the entrances and of the inner apartments, were frequently stained to imitate foreign and rare woods. They were either of one or two valves, turning on pins of metal, and were secured within by a bar or bolts. Some of these bronze pins have been discovered in the tombs of Thebes. They were fastened to the wood with nails of the same metal, whose round heads served also as an ornament, and the upper one had a projection at the back, in order to prevent the door striking against the wall. We also find in the stone lintels and floor, behind the thresholds of the tombs and temples, the holes in which they turned, as well as those of the bolts and bars, and the recess for receiving the opened valves. The folding doors had bolts in the centre, sometimes above as well as below; a bar was placed across from one wall to the other; and in many instances wooden locks secured them by passing over the centre, at the junction of the two folds. For greater security they were occasionally sealed with a mass of clay, as is proved by some tombs found closed at Thebes, by the sculptures, and in the account given by Herodotus of Rhampsinitus' treasury. Keys were made of bronze or iron, and consisted of a long straight shank, about five inches in length, with three or more projecting teeth; others had a nearer resemblance to the wards of modern keys, with a short shank about an inch long; and some resembled a common ring with the wards at its back. These are probably of Roman date. The earliest mention of a key is in Judges (iii. 23-25), when Ehud having gone "through the porch, and shut the doors of the parlor upon him and locked them," Eglon's "servants took a key and opened them." The doorways, like those in the temples, were often surmounted by the Egyptian cornice; others were variously decorated, and some, represented in the tombs, were surrounded with a variety of ornaments, as usual richly painted. These last, though sometimes found at Thebes, were more general about Memphis and the Delta; and two good instances of them are preserved at the British Museum, brought from a tomb near the Pyramids. Even at the early period when the Pyramids were built, the doors were of one or two valves: and both those of the rooms and the entrance doors opened inwards, contrary to the custom of the Greeks, who were consequently obliged to strike on the inside of the street door before they opened it, in order to warn persons passing by; and the Romans were forbidden to make it open outward without a special permission.