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

			159,000,001		Handy Hints		T-d1 to T-d4		April 2011
			   to
			159,100,000

			159,100,001		Handy Hints		T-d1 to T-d4		April 2011
			   to						and T-a1 to T-a4	April 2011
			159,200,000

			159,200,001		Handy Hints		T-a1 to T-a4		April 2011
			   to
			159,300,000

			159,300,001		Handy Hints		T-b1 to T-b4		April 2011
			   to						
			159,400,000

			159,400,001		Handy Hints		T-b1 to T-b4		April 2011
			   to						and T-c1 to T-c4	April 2011
			159,500,000

			159,500,001		Handy Hints		T-c1 to T-c4		April 2011
			   to
			159,600,000

			159,600,001		Handy Hints		T-d1 to T-d4		April 2011
			   to
			159,700,000

			159,700,001		Handy Hints		T-a1 to T-a4		April 2011
			   to
			159,800,000

			159,800,001		Handy Hints		T-a1 to T-a4		April 2011
			   to
			159,900,000

			159,900,001		Handy Hints		T-b1 to T-b4		April 2011
			   to
			160,000,000