Armory v. Delamirie

A chimney sweep's boy found a jewelled ring and, sensibly, took it to a goldsmith to have it valued. The goldsmith's apprentice slipped the stones out and tried to fob the boy off with three halfpence for the empty setting. Three centuries on, this is still the case that teaches that a finder's possession is good against everyone except the true owner.

Parties

Armory — plaintiff; a chimney sweep's boy who found a jewel.

Delamirie — defendant; a goldsmith, sued on the basis of his apprentice's conduct.

Facts

Armory, a boy employed as a chimney sweep, found a jewel still set in a ring while going about his work. He took it to the shop of Delamirie, a goldsmith, to have it valued, evidently not knowing its worth himself and having no way to identify its true owner.

An apprentice working in Delamirie's shop, acting for his master, took the ring on the pretence of weighing it to determine its value, and in doing so surreptitiously removed the gems from their setting. He then returned to Armory with only the empty setting, telling him it was worth three halfpence, and offered to pay him that sum for it. Armory refused the offer and instead demanded that the stones be returned to their setting exactly as he had brought them. The apprentice returned only the empty socket, without the gems.

Armory sued Delamirie in trover (the common law action for wrongful conversion of goods), holding the master liable for his apprentice's conduct.

Issues Raised

1. Does a finder of a lost or mislaid item, who is not the true owner, have any property right in that item capable of being protected against interference by others?
2. Where the actual value of converted goods cannot be precisely established because the defendant himself has prevented the claimant from having them properly examined or valued, how should damages be assessed?

Arguments Contended

On behalf of Armory (Plaintiff): Armory argued that although he was not the true owner of the jewel, his finding and possession of it gave him a property right good against everyone in the world except the true owner — a right the goldsmith's apprentice had wrongfully interfered with by removing the stones and returning only the empty setting. Since Delamirie's own apprentice had prevented Armory from having the stones properly weighed or valued by taking them out of the setting and not returning them, the defendant should not be permitted to benefit from that same wrongdoing by insisting on proof of the stones' precise value; the value should be assumed in the claimant's favour.

On behalf of Delamirie (Defendant): Delamirie's position, to the extent a defence was offered, would have rested on minimising both liability and the value of what was taken, given that Armory himself had never established clear ownership of the jewel and could offer no precise, independently verified evidence of the stones' actual quality or value once they had been removed and not returned.

Court's Reasoning

Pratt, C.J. held that a finder of goods, though not the owner, has a property interest in those goods sufficient to maintain an action against anyone except the true owner who wrongfully deprives him of possession — the finder's title is good against the whole world but the one person who can show a better right. Armory's finding and possession of the jewel therefore gave him a right that Delamirie's apprentice, in wrongfully removing the stones and refusing to return them, had violated.

On the separate question of damages, the Court held that since the defendant's own apprentice had taken the stones out of their setting and never returned them, Delamirie could not now insist that the plaintiff prove their precise value and quality through direct evidence — the defendant, through his servant's own wrongdoing, had made such direct proof impossible. In these circumstances, the proper approach was to resolve the uncertainty in the plaintiff's favour and assume the stones to have been of the highest quality that they might, from their description or apparent character, have been, in the absence of any evidence to the contrary from the defendant.

Judgement

The Court of King's Bench found for Armory, holding that his possession as finder gave him a good title against Delamirie, and directed that damages be assessed on the footing that the stones, in the absence of contrary evidence, should be presumed to be of the highest value consistent with the jewel's description.

Legal Principle / Ratio

A finder of goods, although not the true owner, acquires a property right in those goods good against everyone except the true owner, and may sue anyone (other than the true owner) who wrongfully interferes with that possession. Where a defendant's own wrongdoing has made it impossible for the claimant to produce precise evidence of the value of goods converted, the court will resolve that evidentiary uncertainty against the wrongdoer, presuming the goods to have been of the highest value consistent with the available evidence, rather than let the defendant benefit from the very difficulty his own conduct created.

Significance

Armory v. Delamirie is one of the foundational cases in the law of personal property and the tort of conversion, establishing the principle — still fundamental today — that mere possession, even by a finder with no ultimate title, is a protectable property interest good against all but the true owner. Its ruling on damages, sometimes called the "highest value" or evidentiary presumption rule, remains an important illustration of how courts resolve valuation uncertainty caused by a defendant's own wrongdoing against that defendant, rather than against the innocent claimant, and the case is cited across common law jurisdictions, including India, wherever the rights of a finder of lost property are in issue.

Exam-Important Points

• Facts in one line: a chimney sweep's boy found a jewelled ring and took it to a goldsmith for valuation; the goldsmith's apprentice removed the stones and returned only the empty setting.
• Holding: a finder has a property right good against everyone except the true owner — the goldsmith was liable in trover for the apprentice's conversion of the stones.
• Damages rule: since the defendant's own wrongdoing prevented precise valuation, the court presumed the stones to be of the highest value consistent with the evidence — uncertainty is resolved against the wrongdoer.
• Core principle to remember: possession is a valid title against everyone but the true owner — foundational to the modern law of finders and conversion.
• Still cited today (including in India) wherever a finder's rights over lost or mislaid property are in question.

Facts, citation and reasoning verified against Wikipedia's and independent case-law summaries' accounts of the judgment.