FIG. 1 is a perspective view showing the front, right side and top of a chair arm which forms my new design, the broken lines showing other parts of a chair being for illustrative purposes only and forming no part of my design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view showing the front, right side and top thereof.