Number group Earliest date known Front design Designator -------------------------------------------------------------------------------- 31,000,001 February 2006 Handy Hints T-c1 to T-c4 to 31,100,000 31,100,001 February 2006 Handy Hints T-c1 to T-c4 to 31,200,000 31,200,001 February 2006 Handy Hints T-c1 to T-c4 to 31,300,000 31,300,001 January 2006 Handy Hints Td-1 to T-d4 to 31,400,000 31,400,001 January 2006 Handy Hints Td-1 to T-d4 to 31,500,000 31,500,001 January 2006 Handy Hints Td-1 to T-d4 to 31,600,000 31,600,001 January 2006 Handy Hints Td-1 to T-d4 to 31,700,000 31,700,001 January 2006 Handy Hints Td-1 to T-d4 to 31,780,000? 031,780,001? January 2006 Handy Hints T-d1 to T-d4 to 031,787,000? 31,78x,001? January 2006 Handy Hints (Bus) Ta-1 to T-a4 to 31,800,000 The above two number groups appear to intermix 031,800,001 January 2006 Handy Hints T-d1 to T-d4 to 031,900,000 31,800,001 December 2005 Handy Hints (Bus) T-a1 to T-a4 to 31,900,000 The above two number groups also appear to intermix 031,900,001 January 2006 Handy Hints T-d1 to T-d4 to 032,000,000 31,900,001 December 2005 Handy Hints (Bus) T-a1 to T-b4 to 32,000,000 The above two number groups also appear to intermix