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

			100,000,001		Handy Hints		T-a1 to T-a4		June 2010
			   to
			100,100,000

			100,100,001		Handy Hints		T-b1 to T-b4		June 2010
			   to
			100,200,000

			100,200,001		Handy Hints		T-b1 to T-b4		July 2010
			   to						and T-c1 to T-c4	August 2010
			100,300,000

			100,300,001		Handy Hints		T-c1 to T-c4		June 2010
			   to
			100,400,000

			100,400,001		Handy Hints		T-d1 to T-d4		July 2010
			   to
			100,500,000

			100,500,001		Handy Hints		T-d1 to T-d4		July 2010
			   to						and T-a1 to T-a4	August 2010
			100,600,000

			100,600,001		Handy Hints		T-a1 to T-a4		September 2010
			   to
			100,700,000

			100,700,001		Handy Hints		T-b1 to T-b4		August 2010
			   to
			100,800,000

			100,800,001		Handy Hints		T-b1 to T-b4		September 2010
			   to						and T-c1 to T-c4	August 2010
			100,900,000

			100,900,001		Handy Hints		T-c1 to T-c4		August 2010
			   to						and T-d1 to T-d4	August 2010
			101,000,000