Shelf

Description

FIG. 1 is a perspective view showing the new design for a shelf;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines form no part of the claimed design.

Claims

The ornamental design for a shelf as shown and described.