Grating

FIG. 1 is a front perspective view of a grating in accordance with my design; FIG. 2 is a front elevation view of the grating of FIG. 1 ; FIG. 3 is a rear elevation view of the grating of FIG. 1 ; FIG. 4 is a right side elevation view of the grating of FIG. 1 ; FIG. 5 is a left side elevation view of the grating of FIG. 1 ; FIG. 6 is a top plan view of the grating of FIG. 1 ; and, FIG. 7 is a bottom plan view of the grating of FIG. 1 . The broken lines shown in the drawings represent environmental subject matter and portions of the grating that form no part of the claimed design. The claimed design is shown with symbolic breaks in the length of the bearing bars thereof. The appearance of any portion of the article between the break lines forms no part of the claimed design.