Lot 1 (All artists A - E) Bidding ends at 19:30 on 18 May 2011 BST
Lot 2 (All artists F - M) Bidding ends at 20:00 on 18 May 2011 BST
Lot 3 (All artists N - Z) Bidding ends at 20:30 on 18 May 2011 BST