Panel for the back of a chair

FIG. 1 is a perspective view of a panel for the back of a chair showing my new design;

FIG. 2 is a right hand end view of the panel, taken in FIG. 1;

FIG. 3 is a front view of the panel;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a rear view of the panel; and,

FIG. 6 is a bottom view of FIG. 5.

The broken lines shown in FIG. 1 are for illustrative purposes only and form no part of the claimed design.