FIG. 1 is a right side view of a shelf board showing my new design in accordance with a first embodiment of the present invention;
FIG. 2 is a left side view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a front, right side, top plan perspective view thereof;
FIG. 8 is a reference perspective view thereof including a grayish portion;
FIG. 9 is a reference view thereof showing state in use;
FIG. 10 is a reference view thereof showing state in use;
FIG. 11 is a reference view thereof showing state in use;
FIG. 12 is a reference view thereof showing state in use;
FIG. 13 is a right side of a shelf board showing my new design in accordance with a second embodiment of the present invention;
FIG. 14 is a left side view thereof;
FIG. 15 is a rear view thereof;
FIG. 16 is a front view thereof;
FIG. 17 is a top plan view thereof;
FIG. 18 is a bottom view thereof;
FIG. 19 is a front, right side, top plan perspective view thereof;
FIG. 20 is a reference perspective view thereof including a grayish portion;
FIG. 21 is a reference view thereof showing state in use;
FIG. 22 is a reference view thereof showing state in use;
FIG. 23 is a reference view thereof showing state in use;
FIG. 24 is a reference view thereof showing state in use;
FIG. 25 is a right side view of a shelf board showing my new design in accordance with a third embodiment of the present invention;
FIG. 26 is a left side view thereof;
FIG. 27 is a rear view thereof;
FIG. 28 is a front view thereof;
FIG. 29 is a top plan view thereof;
FIG. 30 is a bottom view thereof;
FIG. 31 is a front, right side, top plan perspective view thereof;
FIG. 32 is a reference perspective view thereof including a grayish portion;
FIG. 33 is a reference view thereof showing state in use;
FIG. 34 is a reference view thereof showing state in use;
FIG. 35 is a reference view thereof showing state in use;
FIG. 36 is a reference view thereof showing state in use;
FIG. 37 is a right side view of a shelf board showing my new design in accordance with a fourth embodiment of the present invention;
FIG. 38 is a left side view thereof;
FIG. 39 is a rear view thereof;
FIG. 40 is a front view thereof;
FIG. 41 is a top plan view thereof;
FIG. 42 is a bottom view thereof;
FIG. 43 is a front, right side, top plan perspective view thereof;
FIG. 44 is a reference perspective view thereof including a grayish portion;
FIG. 45 is a reference view thereof showing state in use;
FIG. 46 is a reference view thereof showing state in use;
FIG. 47 is a reference view thereof showing state in use; and,
FIG. 48 is a reference view thereof showing state in use.
The broken line disclosure does not form part of the claimed design.
The dashed-dotted line disclosure illustrates a boundary between the claimed design and environmental features and form no part of the claimed design.