Number group Earliest date known Front design Designator -------------------------------------------------------------------------------- 029,000,001 February 2006 Handy Hints T-a1 to T-a4 to 029,100,000 029,100,001 February 2006 Handy Hints T-a1 to T-a4 to 029,140,000 29,140,001 February 2006 Handy Hints T-b1 to T-b4 to 29,200,000 029,200,001 February 2006 Handy Hints T-b1 to T-b4 to 029,300,000 029,300,001 February 2006 Handy Hints T-b1 to T-b4 to 029,370,000? 29,371,001? January 2006 Handy Hints T-c1 to T-c4 to 29,400,000 29,400,001 January 2006 Handy Hints Tc-1 to T-c4 to 29,450,000? 029,450,001? December 2005 Handy Hints Tc-1 to T-c4 to 029,500,000 029,500,001 December 2005 Handy Hints Tc-1 to T-c4 to 029,600,000 029,600,001 January 2006 Handy Hints Tc-1 to T-c4 to 029,610,000? 29,640,001? January 2006 Handy Hints T-d1 to T-d4 to 29,690,000? 029,690,001? December 2005 Handy Hints T-d1 to T-d4 to 029,700,000 029,700,001 December 2005 Handy Hints Td-1 to T-d4 to 029,800,000 029,800,001 December 2005 Handy Hints Td-1 to T-d4 to 029,850,000? 29,851,000? January 2006 Handy Hints T-a1 to T-14 to 29,900,000 29,900,001 December 2005 Handy Hints Ta-1 to T-a4 to 30,000,000