Number group		Front design		Designators		Earliest known date	
	
			--------------------------------------------------------------------------------------------
	
			78,000,001		Bus - Handy Hints	T-c1 to T-c4		July 2009
			    to 
			78,100,000

			78,100,001		Bus - Handy Hints	T-c1 to T-c4		July 2009
			    to									
			78,200,000

			78,200,001		Bus - Handy Hints	T-c1 to T-c4		April 2009
			    to									
			78,300,000

			78,300,001		Bus - Handy Hints	T-c1 to T-c4		April 2009
			    to
			78,400,000

			78,400,001		Not seen as yet		(by 11/2010)
			    to 
			78,500,000

			78,500,001		Not seen as yet		(by 11/2010)
			    to									
			78,600,000

			78,600,001		Bus - Handy Hints	T-d1 to T-d4		June 2009
			    to 
			78,700,000

			78,700,001		Not seen as yet		(by 11/2010)
			    to
			78,800,000
	
			78,800,001		Bus - Handy Hints	T-d1 to T-d4		May 2009
			    to 
			78,900,000
	
			78,900,001		Bus - Handy Hints	T-d1 to T-d4		May 2009
			    to									
			79,000,000