Possible Clues:

• Some recycling material
• Some recyclable material from product manufacturing
• Old bits of armour, perhaps, from battle, came to a pound
• Fight with others about motorway -- it's unwanted by industry?
• Iron etc. of use only for resmelting
• Verbal resolution after brawl for recyclable items
• Recycled iron, e.g
• Arc lamp set off material for reprocessing
• Smart place to recycle — this?
• Discarded iron, maybe