bolted to the wall 16 the bracket is locked into place by an allan screw 31 fig8 shows this embodiment of the towel bar from the back side with the stone rod 10 separated from the metal support structure the groove 11 in the stone stops before reaching the ends of the rod the metal angle 12 and 14 that spans between the support brackets 13 can vary in length and is dependent on the length of the stone rod for a single towel bar this angle would be approximately 24 inches long which is 2 inches shorter than the stone rod the cylindrical recesses 15 for the attachment bushings can be seen on the back face of the brackets the allan screw holes 31 are visible on the underside of the brackets fig9 shows a variation of this embodiment of the towel bar viewed from the back side with the stone rod 10 separated from the metal support structure this figure illustrates a long bar intended for two towels and it therefore has a center bracket 17 for additional support the stone rod would be approximately 50 inches long the metal support angle would be about 48 inches long fig1 a is a front elevation of this embodiment of the towel bar with the stone rod 10 seemingly resting on the two end brackets 13 and the center bracket 17 fig1 b is an enlarged partial view of left end of the towel bar shown in this preferred embodiment the groove 11 in the stone rod 10 shown by the dotted line tapers from roughly u00be of an inch to zero as a.