Frame sill extrusion
FIG. 1 is a fragmentary top perspective view of the frame sill extrusion showing my design; 
     FIG. 2 is a top plan view broken away to indicate indeterminate length; 
     FIG. 3 is a bottom plan view thereof broken away to indicate indeterminate length; and 
     FIG. 4 is a front elevational view thereof to a reduced scale in which the rear elevational view is a mirror image of the front view.