FIG. 1 is a perspective view of an overhead projection system showing the new design for a overhead projection system. As shown, the overhead projection system is oriented upright;
FIG. 2 is a side view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The portions of the article in broken lines are shown for illustrative purposes only and form no part of the claimed design.