FIG. 1 is a top perspective view of a seal showing our new design;

FIG. 2 is a side elevational view, the side opposite being a mirror image thereof;

FIG. 3 is an elevational view from the right side of FIG. 2;

FIG. 4 is an elevational view from the left side of FIG. 2;

FIG. 5 is a top plan view;

FIG. 6 is a bottom plan view; and,

FIG. 7 is an enlarged cross-sectional view in the plane 7--7 in FIG. 5.