FIG. 1 is a reduced perspective view of the quadra-circular window shade support base in use;
FIG. 2 is a perspective view of the hemi-circular window shade support base;
FIG. 3 is a left side view of the invention, the right side view being a mirror image;
FIG. 4 is a top plan of the invention;
FIG. 5 is a front elevation view of the invention; and,
FIG. 6 is a bottom plan view of the invention.
The broken lines in FIG. 1 are for purposes of illustration only and form no part of the claimed design.