||Wednesday, April 24, 1985
(1) Quadrilaterals containing one or more letters
(3) Quadrilaterals with dark surfaces or parts of surfaces
(4) One quadrilateral
(5) Quadrilateral figures with one or more convex or concave sides -- Note: Not including elongated surfaces with one or more convex or concave sides (25.3.1).
(6) Two predominant colours
(7) Yellow, gold
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