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. 24 shown for “Architectural Fragment from a Retable, Tabernacle, or Tomb” — 64 records examined, 6 dropped by the rights gate.
Archives queried 2026-08-27 18:57 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Architectural Fragment from a Retable, Tabernacle, or Tomb
Artist not stated in the record · ca. 1400

The Elevation of an Altar Retable and The Plan for an Altar Retable
Artist not stated in the record · 1770–1800

Architectural Fragment from a Retable, Tabernacle, or Tomb
Artist not stated in the record · ca. 1400

Design for an altar
Giuseppe Barberi, Italian, 1746–1809 · 1746-1809

Architectural Fragment from a Retable, Tabernacle, or Tomb
Artist not stated in the record · ca. 1400

Design for a Main Altar
Giuseppe Barberi, Italian, 1746–1809 · 1746-1809

Tabernacle of Cherves
Artist not stated in the record · ca. 1220–1230

Design for an Altar
Filippo Marchionni, Italian, 1732–1805 · ca. 1780–90

Moses and Aaron before Pharaoh: An Allegory of the Dinteville Family
Master of the Dinteville Allegory · 1537

Main altar
Giuseppe Barberi, Italian, 1746–1809 · 1746-1809

Tomb of Ermengol VII, Count of Urgell
Artist not stated in the record · ca. 1300–1350

Design for a Main Altar
Giuseppe Barberi, Italian, 1746–1809 · 1746-1809

The Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38

Design for a Main Altar
Giuseppe Barberi, Italian, 1746–1809 · 1746-1809

Funerary Stele with Architectural Frame
Artist not stated in the record · 6th–7th century

Design for a Main Altar
Giuseppe Barberi, Italian, 1746–1809 · 1746-1809

The Assumption of the Virgin
Bernardo Daddi · 1337–38

Elevation of Part of an Altar Retable, from "Architectura und Ausztheilung der V Seulen"
Wendel Dietterlinn the Elder, 1551 – 1599 · 1593–94

Hexagonal Tile Ensemble with Sphinx
Artist not stated in the record · ca. 1160s–70s

Design for a Tabernacle
Artist not stated in the record · ca. 1570

Tommaso di Folco Portinari (1428–1501); Maria Portinari (Maria Maddalena Baroncelli, born 1456)
Hans Memling · ca. 1470

Design for a Main Altar
Giuseppe Barberi, Italian, 1746–1809 · 1780-1783
Inscribed Fragment from a Lintel or Frieze with a Cross and Rosette Medallions
Artist not stated in the record · 6th century

Design for a Tabernacle and a Baptismal Font
Giuseppe Valadier, Italian, 1762–1839 · 1746-1809
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. 52 matched · 24 examined · 3 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. 2015900 matched · 40 examined · 3 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 18:57 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.