Portion of a pillow
US D636209 S1
The ornamental design for a portion of a pillow, as shown and described.
FIG. 1 is a first perspective view thereof;
FIG. 2 is a top view thereof;
FIG. 3 is a first side view thereof;
FIG. 4 is a first end view thereof
FIG. 5 is a second side view thereof;
FIG. 6 is a second end view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines shown in the drawings are for environmental purposes only and form no part of the claimed design.