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

			120,000,001		Handy Hints		T-d1 to T-d4		October 2010
			   to
			120,100,000

			120,100,001		Handy Hints		T-d1 to T-d4		October 2010
			   to						and T-a1 to T-a4	October 2010
			120,200,000

			120,200,001		Handy Hints		T-a1 to T-a4		March 2011
			   to						and T-b1 to T-b4	October 2010
			120,300,000

			120,300,001		Handy Hints		T-b1 to T-b4		October 2010
			   to
			120,400,000

			120,400,001		Handy Hints		T-b1 to T-b4		October 2010
			   to						and T-c1 to T-c4	October 2010
			120,500,000

			120,500,001		Handy Hints		T-c1 to T-c4		October 2010
			   to
			120,600,000

			120,600,001		Handy Hints		T-d1 to T-d4		October 2010
			   to
			120,700,000

			120,700,001		Handy Hints		T-d1 to T-d4		October 2010
			   to						and T-a1 to T-a4	October 2010
			120,800,000

			120,800,001		Handy Hints		T-a1 to T-a4		October 2010
			   to
			120,900,000

			120,900,001		Handy Hints		T-b1 to T-b4		October 2010
			   to
			121,000,000