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

			151,000,001		Handy Hints		T-b1 to T-b4		May 2011
			   to						and T-c1 to T-c4	June 2011
			151,100,000

			151,100,001		Handy Hints		T-c1 to T-c4		May 2011
			   to
			151,200,000

			151,200,001		Handy Hints		T-d1 to T-d4		June 2011
			   to
			151,300,000

			151,300,001		Handy Hints		T-d1 to T-d4		June 2011
			   to						and T-a1 to T-a4	May 2011						
			151,400,000

			151,400,001		Handy Hints		T-a1 to T-a4		May 2011
			   to
			151,500,000

			151,500,001		Handy Hints		T-b1 to T-b4		May 2011
			   to
			151,600,000

			151,600,001		Handy Hints		T-c1 to T-c4		June 2011
			   to
			151,700,000

			151,700,001		Handy Hints		T-c1 to T-c4		May 2011
			   to						and T-d1 to T-d4	August 2011
			151,800,000

			151,800,001		Handy Hints		T-d1 to T-d4		June 2011
			   to
			151,900,000

			151,900,001		Handy Hints		T-a1 to T-a4		May 2011
			   to
			152,000,000