Two 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 “One of Two Doors with Ironwork” — 40 records examined, 4 dropped by the rights gate.
Archives queried 2026-08-27 10:40 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.The Metropolitan Museum of Art: HTTP 403 from collectionapi.metmuseum.org. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.

Title Page
Antoine Pierretz le jeune, French, active 1660-70 · ca. 1665

Two Designs for Ecclesiastical Ironwork
Jean Lamour, French, 1698–1771 · ca. 1764

Two Designs for Ecclesiastical Ironwork
Jean Lamour, French, 1698–1771 · ca. 1764

Three Designs for Decorative Ironwork
Jean Lamour, French, 1698–1771 · 1759–68

Two Designs for Ecclesiastical Ironwork
Jean Lamour, French, 1698–1771 · 1760

Coupe du grand Escalier de l’Hôtel de Toulouse à Paris, prise sur sa plus grande longueur, du Vestibule qui le precede, et de l’Antichambre à la quelle cet Escalier conduit au premier Etage
Jean Mariette, French, 1660–1742 · 1713–42

Elevation and Plan of a Carriage Entrance
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1745

Cabinet
Artist not stated in the record · 1880–1900

Two Designs for Decorative Ironwork
Jean Lamour, French, 1698–1771 · 1759–68

Ironwork Door Design
Jean Tijou, French, active 1689 - 1712 · 1693

Six Designs for Alcove Elevations
Giuseppe Barberi, Italian, 1746–1809 · ca. 1790

Elevation of Salon Chimney Wall
Pierre-Louis Moreau-Desproux, French, 1727 – 1793 · ca. 1780
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. HTTP 403 from collectionapi.metmuseum.org. No records from this archive are shown for this query.Unavailable - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 3038894 matched · 40 examined · 4 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.12 shown
These figures describe the pass run at 2026-08-27 10:40 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.