FIG. 1 is a top plan view of a tab corner for a seal showing my new design, the broken lines indicating a seal are shown for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a outer corner elevation view thereof;

FIG. 3 is an inner corner elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a side elevation view thereof;

FIG. 7 is a top and rear perspective view thereof; and,

FIG. 8 is a section view thereof on line 8--8 in FIG. 1.