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 “Bronze mirror cover” — 64 records examined, 26 dropped by the rights gate.
Archives queried 2026-09-06 11:55 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Commode à vantaux
David Roentgen · ca. 1775–79 with later alterations

Design for a Display Stand
Karl Friedrich Schinkel, German, 1781–1841 · 1812

Mantel clock with musical movement
Jean-Baptiste-André Furet · ca. 1784

A Salon in a Residence of the Duke of Leuchtenberg
Otto Wagner, German, 1803 – 1861 · 1850

Drop-front desk (secrétaire à abattant or secrétaire en cabinet)
Martin Carlin · ca. 1776

Mirror with floral roundels
Artist not stated in the record · 581-618

Bronze mirror cover
Artist not stated in the record · 4th century BCE

Mirror with dragons
Artist not stated in the record · 5th-4th century BCE

Mechanical table
Jean Henri Riesener · 1781

Mirror
Artist not stated in the record · 581-618

Bronze mirror
Artist not stated in the record · ca. 350 BCE

Mirror
Artist not stated in the record · 220-589

Oval table
David Roentgen · ca. 1774–80

Mirror with felines
Artist not stated in the record · 581-618

Tapestry Room from Croome Court
Robert Adam · 1763–71

Mirror
Artist not stated in the record · 3rd century BCE

Mirror
Johann Valentin Gevers · ca. 1710

Mirror
Artist not stated in the record · 618-907

Mechanical table
Jean-François Oeben · ca. 1761–63

Mirror
Artist not stated in the record · 206 BCE-220 CE

Longcase astronomical regulator
Ferdinand Berthoud · ca. 1768–70

Mirror
Artist not stated in the record · 206 BCE-220 CE

Pair of Pellet-Lock Pistols with Case with Accessories
Charles Moore · ca. 1825

Mirror
Artist not stated in the record · 206 BCE-220 CE
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. 1325 matched · 24 examined · 1 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. 47549 matched · 40 examined · 25 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 2026-09-06 11:55 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.