OpenTwo archives, queried live.
Every record below comes from The Met or Smithsonian Open Access and was filtered on that archive’s own rights field before it reached this page. 12 shown for “Louis François Cassas” — 24 records examined, 0 dropped by the rights gate.
Archives queried 2026-08-28 15:52 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.
Le château de Kerjean
Louis François Cassas · 1777
Plate (from the "Vues Diverses" service)
Sèvres Manufactory · 1814
The Proserpine at anchor in Venice
Louis François Cassas · ca. 1782
View of Messina Harbor
Louis François Cassas · 1783
The Louis XV Room
Jean-François Roumier · ca. 1720–25, with later additions
Louis XV (1710–1774), King of France
Jean-Baptiste Lemoyne the Younger · 1757
Les monuments d'Égypte
Oberkampf Manufactory · ca. 1808
The Rebuke of Adam and Eve
Charles Joseph Natoire · 1740
The Toilette of Venus
François Boucher · 1751
Virgin and Child with the Young Saint John the Baptist and Angels
François Boucher · 1765
Armchair (fauteuil) from Louis XVI's Salon des Jeux at Saint Cloud
Georges Jacob · 1788
Louis XIV of France
François Bertinet · ca. 1660–85
Where these records came from.
Two archives are wired, and only two. Each one is filtered on its own rights field — never on a title match, and never on the presence of an image file.
- The Met Collection API (Open Access)Rights field:
isPublicDomain. 990 matched · 24 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.12 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-28 15:52 UTC, during this request. A completed pass is kept for 24 hours and replayed for an identical search, which is what keeps repeated queries inside Smithsonian’s 30-requests-per-hour allowance. A pass in which either archive failed to answer is never kept — an outage must not be replayed as though it were a finding about the catalogue.
Wikimedia Commons and the Library of Congress are deliberately not wired. Wikimedia was confirmed, on a live query, to return CC-BY material inside the same result set as genuine public domain works, and filtering it safely has not been designed yet. loc.gov was blocked by bot detection during the source evaluation, so its rights vocabulary has never been observed — and nothing here is built on a field nobody has read.
An image file is a rights claim. It never travels without its field.