What the arbitrators decided

Restitution decisions show the diversity of possible solutions. Four anonymised cases, adapted to preserve confidentiality, illustrate the tribunal's method: establishing the facts, assessing the cultural link, proposing a balanced solution.
The sheets follow the same structure as those in the other sections: facts, question, outcome, lessons.
For the full texts and the list of decisions, see the decision database.
Restitution decisions in figures
Source: Registry of the OIMAP Arbitral Tribunal.
Case 1: a ritual mask
A ritual mask kept in a museum for a century was claimed by a community. The experts established its ceremonial use and the loss of its transmission after its departure. The museum acknowledged the value of the link. The tribunal endorsed an agreement: transfer of ownership to the community, with a ten-year loan to the museum for a partnership exhibition.
Lesson: a living cultural link justifies a transfer, but scientific and public access can be preserved through loans.



Case 2: an archaeological collection
A collection of ceramics from an old excavation was claimed by the State of origin. The holder relied on an export authorisation of the time. The tribunal found the removal regular but, given the scientific value of the whole, ordered the return of half the collection, the other half remaining on deposit for study.
Lesson: in the absence of unlawfulness, the tribunal prefers a solution of sharing to an outright refusal.
Cases 3 and 4: manuscript and acquired object
An ancient manuscript, acquired by a collector from a dealer, had been removed from a national library during a conflict. The tribunal ordered its restitution to the State, with compensation of the collector by the seller. Another case, concerning a sculpture acquired during an expedition, ended in a lasting partnership: co-ownership, rotation of exhibitions, digitisation.
Lesson: the solution must take account of good-faith acquisitions, while recognising the gravity of an unlawful removal.
Follow-up after the award
For restitutions, performing the award often requires meticulous logistics: packing, transport, insurance, conservation conditions, ceremonies. The Registry may appoint a coordinator in charge of follow-up, in liaison with the Protection department.
A report is submitted to the tribunal at the end of the process. The parties may agree on follow-up reports at regular intervals, notably for long-term loans.
Four outcomes
| Case | Outcome | Principle |
|---|---|---|
| Ritual mask | Transfer and loan | Living cultural link |
| Archaeological collection | Sharing | Scientific value |
| Manuscript | Restitution and compensation | Unlawful removal |
| Sculpture | Co-ownership | Negotiated solution |
Milestones
- First decision
Restitution.
- First long-term loan
Innovation.
- Co-ownership
Creative solution.
- 58 decisions
Solid case law.
Cases, not rules



Immediate transfer or transition

Immediate
Return without delay- Symbolic response
- Simple
- Risk for conservation
When the conditions are met.

Transitional
Loan, study, preparation- Secures the object
- Prepares the welcome
- Longer
When conservation conditions need strengthening.
Negotiating a restitution
- Document
Link and history.
- Dialogue
Mediation.
- Propose
Creative solutions.
- Agree
Compromise.
- Monitor
Enforcement.
Lessons
A community representative

« The day the mask came back, there was a ceremony. We had not only found an object again: we had found a memory again. »
Vocabulary of decisions
- Transfer of ownership
- Passing of ownership to a new holder.
- Study deposit
- Temporary conservation for research.
- Digitisation
- Creation of a digital copy.
- Collective memory
- Shared memories of a community.
Frequently asked questions
Are the cases real?
They are adapted from real, anonymised decisions.
Can a loan be obtained?
Yes.
Who ensures enforcement?
The parties, followed by the Registry.
Where can I see enforcement?
Useful documents
Contacts

See enforcement of awards
Image credits (16)
- Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815) — Cleveland Museum of Art, CC0 1.0
- Red-Figure Stamnos (Mixing/Storage Vessel): Komos (Musicians and Revelers), Kleophon Painter (c. 435–425 BCE) — Cleveland Museum of Art, CC0 1.0
- The Calumny of Apelles, Giorgio Ghisi (1560) — Cleveland Museum of Art, CC0 1.0
- The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760) — Cleveland Museum of Art, CC0 1.0
- The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530) — Cleveland Museum of Art, CC0 1.0
- Black-Figure Neck-Amphora of Panathenaic Shape (Storage Vessel) (525–500 BCE) — Cleveland Museum of Art, CC0 1.0
- The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855) — Cleveland Museum of Art, CC0 1.0
- Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439) — Cleveland Museum of Art, CC0 1.0
- Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840) — Cleveland Museum of Art, CC0 1.0
- Hittite Vessel with Four Scenes Molded and Carved in Relief (1400–1200 BCE) — Cleveland Museum of Art, CC0 1.0
- White-Ground Lekythos (Oil Vessel): Mourners at Tomb (c. 400s BCE, with modern painting) — Cleveland Museum of Art, CC0 1.0
- The Apotheosis of Romulus: Design for a Ceiling, Domenico Maria Canuti (c. 1675–76) — Cleveland Museum of Art, CC0 1.0
- Coronation of the Virgin, Christoffel Jegher (1632–36) — Cleveland Museum of Art, CC0 1.0
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
- Seal of Doge Michele Steno (reverse) (1400–1409) — Cleveland Museum of Art, CC0 1.0
- The Dance at the Court of Herod, Israhel van Meckenem (c. 1500) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0
Restitution disputesStates, communities, museums and collectors: how the TAO handles claims for the return of cultural property.›
Decision database412 anonymised decisions: content, structure of an entry, themes, languages and conditions of access.›
Enforcement of awardsAn award is worth something only if it is enforced: New York Convention, recognition and follow-up of TAO awards throughout the world.›