The 'lost' blueprint for the world's first tank has been unearthed. (9 images)

• BNPS_BlueprintsSaved_...jpg BNPS.co.uk (01202 558833) Pic:...

• BNPS_BlueprintsSaved_...jpg BNPS.co.uk (01202 558833) Pic:...

• BNPS_BlueprintsSaved_...jpg BNPS.co.uk (01202 558833) Pic:...

• BNPS_BlueprintsSaved_...jpg BNPS.co.uk (01202 558833) Pic: TankMuseum/BNPS...

• BNPS_WorldsFirstTankB...JPG

• BNPS_BlueprintsSaved_...jpg BNPS.co.uk (01202 558833) Pic:...

• BNPS_BlueprintsSaved_...JPG BNPS.co.uk (01202 558833) Pic:...

• BNPS_BlueprintsSaved_...jpg BNPS.co.uk (01202 558833) Pic:...

• BNPS_BlueprintsSaved_...JPG BNPS.co.uk (01202 558833) Pic:...