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

			157,000,001		Handy Hints		T-b1 to T-b4		August 2011
			   to						and T-c1 to T-c4	July 2011
			157,100,000

			157,100,001		Handy Hints		T-c1 to T-c4		July 2011
			   to
			157,200,000

			157,200,001		Handy Hints		T-d1 to T-d4		July 2011
			   to
			157,300,000

			157,300,001		Handy Hints		T-d1 to T-d4		July 2011
			   to						and T-a1 to T-a4	July 2011						
			157,400,000

			157,400,001		Handy Hints		T-a1 to T-a4		July 2011
			   to
			157,500,000

			157,500,001		Handy Hints		T-b1 to T-b4		July 2011
			   to
			157,600,000

			157,600,001		Handy Hints		T-b1 to T-b4		July 2011
			   to						and T-c1 to T-c4	July 2011		
			157,700,000

			157,700,001		Handy Hints		T-c1 to T-c4		July 2011
			   to
			157,800,000

			157,800,001		Handy Hints		T-d1 to T-d4		July 2011
			   to
			157,900,000

			157,900,001		Handy Hints		T-a1 to T-a4		April 2011
			   to
			158,000,000