Shelf

FIG. 1 is a front, top, and right side perspective view of a shelf, shown separately for illustrating our new design;

FIG. 2 is a rear, bottom, and left side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a perspective view of the shelf where one connecting component is separated from the main body of the shelf;

FIG. 10 is an enlarged view of portion 10 shown in FIG. 1 ; and,

FIG. 11 is an enlarged view of portion 11 shown in FIG. 1 .

The dash-dash broken lines in the drawings depict portions of the shelf that form no part of the claimed design. The dot-dash broken lines in FIGS. 1 and 10 - 11 represent boundaries of the enlarged portions and form no part of the claimed design.