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. 22 shown for “Pair of Minbar Doors” — 64 records examined, 9 dropped by the rights gate.
Archives queried 2026-08-26 20:53 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Pair of Minbar Doors
Artist not stated in the record · ca. 1325–30

Doors of a prison
Giuseppe Barberi, Italian, 1746–1809 · 1780–1790

Bookcase (one of a pair)
Niccolo Michetti · ca. 1715

Elevation of a Palace
Giuseppe Barberi, Italian, 1746–1809 · 1792

Design for a Painted Door
Artist not stated in the record · 1780–90

Pair of mirrored double doors
Lorenzo de Ferrari · ca. 1743–44

cabinet
Artist not stated in the record · ca. 1810

Pair of double doors
Artist not stated in the record · ca. 1710

Swinging doors from Muse Bar, the home bar of Isaiah Muse
Unidentified · 1970s

Pair of Doors
Artist not stated in the record · 9th century

Design for a Mausoleum
Artist not stated in the record · 1790

Pair of Doors
Artist not stated in the record · 9th century

Decorative door boss and nail
Artist not stated in the record · 15th century

Pair of Flower Style Doors
Artist not stated in the record · second half 17th century

Decorative door boss and nail
Artist not stated in the record · 15th century

Pair of Doors Carved in the 'Beveled Style'
Artist not stated in the record · 9th century

Decorative door boss and nail
Artist not stated in the record · 15th century

Pair of Carved Doors
Artist not stated in the record · dated [8]70 AH/1466 CE

Decorative door boss and nail
Artist not stated in the record · 15th century

Decorative door boss and nail
Artist not stated in the record · 15th century

Door board (jovo)
Artist not stated in the record · 19th century

Decorative door boss and nail
Artist not stated in the record · ca. 1550–1700
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. 265 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. 2860086 matched · 40 examined · 9 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 2026-08-26 20:53 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.