Shelf

FIG. 1 is a perspective view of a shelf design showing my new design.

FIG. 2 is a front view of a shelf.

FIG. 3 is a rear view of a shelf.

FIG. 4 is a left side view of a shelf.

FIG. 5 is a right side view of a shelf.

FIG. 6 is a top view of a shelf.

FIG. 7 is a bottom view of a shelf.

FIG. 8 is a perspective view of a shelf, showing the shelf in a folded state; and,

FIG. 9 is another perspective view of a shelf, showing the shelf in a folded state.

Any shading and cross-hatching are not features of the design but are utilized to illustrate the surface contours of the shelf design in the drawings.