Number group		Earliest date known	Front design		Designator
	
        --------------------------------------------------------------------------------

	20,600,001		February 2005		Handy Hints		T-d4
	   to
	20,700,000

	20,700,001		January 2005		Handy Hints		T-d4
	   to
	20,800,000

	20,800,001		January 2005		Handy Hints		T-d4
	   to
	20,900,000

	20,900,001		December 2004		Handy Hints		T-d4
	   to
	21,000,000