Number group		Earliest date known	Front design		Designator
	
        --------------------------------------------------------------------------------
	NOTE: The following numbers DO NOT have a leading zero.

	15,000,001					Handy Hints		T-a4
	   to
	15,100,000

	15,100,001					Handy Hints		T-a4		
	   to
	15,200,000

	15,200,001					Handy Hints		T-a4		
	   to
	15,300,000

	15,300,001					Handy Hints		T-a4		
	   to
	15,400,000

	15,400,001					Handy Hints		T-a4		
	   to
	15,000,000

	15,000,001					Handy Hints		T-a4, T-b4, T-c4, T-d4
	   to
	15,500,000

	15,500,001		August 2004		Handy Hints (Bus)	T-a4
	   to
	15,600,000

	15,600,001		August 2004		Handy Hints (Bus)	T-a4
	   to
	15,700,000

	15,700,001		August 2004		Handy Hints (Bus)	T-a4
	   to
	15,800,000

	15,800,001		August 2004		Handy Hints (Bus)	T-a4, T-b4
	   to
	15,900,000

	15,900,001		August 2004		Handy Hints (Bus)	T-b4
	   to
	16,000,000