FIG. 1 is a top, front, and left side perspective view of a support bracket showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a top plan view thereof, the bottom being a mirror image of that shown;
FIG. 4 is a left side elevation view thereof, the right side being a mirror image of that shown;
FIG. 5 is an additional top, front, and left side perspective view of a first embodiment thereof, with the broken-line disclosure of a towel ring being for illustrative purposes only and forming no part of the claimed design;
FIG. 6 is an additional top, front, and left side perspective view of a second embodiment thereof, with the broken-line disclosure of a towel bar being for illustrative purposes only and forming no part of the claimed design;
FIG. 7 is an additional top, front, and left side perspective view of a third embodiment thereof, with the broken-line disclosure of a tissue holder being for illustrative purposes only and forming no part of the claimed design;
FIG. 8 is an additional top, front, and left side perspective view of a fourth embodiment thereof, with the broken-line disclosure of a double towel bar being for illustrative purposes only and forming no part of the claimed design;
FIG. 9 is an additional top, front, and left side perspective view of a fifth embodiment thereof, with the broken-line disclosure of a tilting wall mirror being for illustrative purposes only and forming no part of the claimed design; and,
FIG. 10 is an additional top, front, and left side perspective view of a sixth embodiment thereof, with the broken-line disclosure of a glass shelf being for illustrative purposes only and forming no part of the claimed design.