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

	21,000,001		December 2004		Handy Hints		T-d4
	   to
	21,100,000

	21,100,001		December 2004		Handy Hints		T-d4 and T-c4
	   to
	21,200,000

	21,200,001		January 2005		Handy Hints		T-c4
	   to
	21,300,000

	21,300,001		January 2005		Handy Hints		T-c4
	   to
	21,400,000

	21,400,001		December 2004		Handy Hints		T-c4
	   to
	21,500,000

	21,500,001		December 2004		Handy Hints		T-c4
	   to
	21,600,000

	21,600,001		December 2004		Handy Hints		T-c4 and T-b4
	   to
	21,700,000

	21,700,001		February 2005		Handy Hints		T-b4
	   to
	21,800,000

	21,800,001		February 2005		Handy Hints		T-b4
	   to
	21,900,000

	21,900,001		February 2005		Handy Hints		T-b4
	   to
	22,000,000