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

			131,000,001		Handy Hints		T-b1 to T-b4		March 2011
			   to						and T-c1 to T-c4	February 2011
			131,100,000

			131,100,001		Handy Hints		T-c1 to T-c4		February 2011
			   to						and T-d1 to T-d4	February 2011
			131,200,000

			131,200,001		Handy Hints		T-d1 to T-d4		February 2011
			   to
			131,300,000

			131,300,001		Handy Hints		T-d1 to T-d4		February 2011
			   to						and T-a1 to T-a4	February 2011						
			131,400,000

			131,400,001		Handy Hints		T-a1 to T-a4		February 2011
			   to
			131,500,000

			131,500,001		Handy Hints		T-b1 to T-b4		March 2011
			   to
			131,600,000

			131,600,001		Handy Hints		T-b1 to T-b4		March 2011
			   to						and T-c1 to T-c4	March 2011
			131,700,000

			131,700,001		Handy Hints		T-d1 to T-d4		March 2011
			   to
			131,800,000

			131,800,001		Handy Hints		T-d1 to T-d4		February 2011
			   to
			131,900,000

			131,900,001		Handy Hints		T-d1 to T-d4		April 2011
			   to						and T-a1 to T-a4	February 2011
			132,000,000