A first edition of the most valuable Harry Potter book ever published could smash all records. (5 images)

• BNPS_HarryPotterBooks...jpg BNPS.co.uk (01202 558833) Pic: Hansons/BNPS...

• BNPS_PotLuck_03.jpg BNPS.co.uk (01202 558833) Pic: Hansons/BNPS...

• BNPS_PotLuck_02.jpg BNPS.co.uk (01202 558833) Pic: Hansons/BNPS...

• BNPS_HarryPotterBooks...jpg BNPS.co.uk (01202 558833) Pic: Hansons/BNPS...

• BNPS_PotLuck_01.jpg BNPS.co.uk (01202 558833) Pic: Hansons/BNPS...