## Facts

- Andrée (Mrs.) Hahn owned a portrait she claimed was an original Leonardo da Vinci and negotiated to sell it to the Kansas City Art Museum.
- During the negotiations, a reporter asked Sir Joseph Duveen, a prominent art dealer, to comment on the painting.
- Without examining Hahn’s painting, Duveen publicly stated that Hahn’s picture was not an authentic Leonardo and that the genuine *La Belle Ferronière* was in the Louvre.
- After the remarks were published, the museum ended negotiations; Hahn alleged the statement caused the loss of the sale and resulting monetary damage.
- At trial, Hahn offered expert and technical evidence (including X-ray analysis and historical documentation) supporting authenticity and disputing the Louvre attribution.
- Duveen and his experts offered connoisseurship-based testimony supporting the Louvre painting’s authenticity and challenging Hahn’s proof.
- The case was tried to a jury; by agreement, Duveen’s motion to dismiss for failure of proof was reserved pending deliberations.
- The jury deliberated for many hours, could not reach a unanimous verdict, and was discharged; Duveen then renewed the motion to dismiss.

## Issues

1. Whether the evidence was sufficient to permit a jury to decide the falsity of Duveen’s public disattribution of Hahn’s painting for purposes of slander of title.
2. Whether Duveen’s categorical public statement could be treated as a factual assertion capable of being true or false, rather than nonactionable opinion.
3. Whether conflicting expert and technical testimony on attribution required submission to a jury rather than dismissal as a matter of law.

## Decision

- The court denied Duveen’s post-trial motion to dismiss.
- The court held the record contained substantial, conflicting evidence such that a reasonable jury could find for either party.
- The hung jury did not establish insufficiency of proof; it reflected the closeness and difficulty of the evidentiary dispute.
- The action was restored to the general calendar for possible retrial.

## Legal Principles

- A case should not be dismissed as a matter of law where conflicting evidence would allow a reasonable jury to find for either side.
- In technical disputes outside common lay knowledge, expert testimony is central, and credibility and weight are primarily for the jury.
- A categorical public disattribution of specific property, made in a transactional context, may be treated as an actionable factual claim in a slander-of-title theory if falsity and special damages are supported by evidence.
- The presence of competing methodologies (technical examination and traditional connoisseurship) can create triable questions of fact rather than grounds for dismissal.

## Conclusion

The court refused to terminate the slander-of-title action after a hung jury, concluding that sharply conflicting expert proof on authenticity and causation created issues for a jury to resolve, and it ordered the case to proceed toward retrial.


Hahn v. Duveen, 234 N.Y.S. 185 (N.Y. Sup. Ct. 1929)