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. 14 shown for “D.M.C., Switzerland” — 64 records examined, 47 dropped by the rights gate.
Archives queried 2026-09-06 21:27 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Snuffbox
D.M.C., Switzerland · ca. 1775

Sidewall
Charles Francis Annesley Voysey, English, 1857–1941 · 1893–1895

Snuffbox
D.M.C., Switzerland · ca. 1780

Flier for "The 13th Annual Zulu Nation Anniversary"
Unidentified · 1987

Broadsword
Artist not stated in the record · early 17th century

Watch
Firm of Sandoz, Ami, et Fils · 1840–55

Frantz Liszt (1811–1866)
Jean-François-Antoine Bovy · 1840

Watch with a portrait of Nicholas I, czar of Russia (r. 1825–55)
Firm of Perret & Cie · probably ca. 1850–55
.jpg&w=3840&q=75)
Reliquary Arm of St. Valentine
Artist not stated in the record · 14th century

Pocket chronometer
François Czapek · ca. 1850–55

Draw-top table
Artist not stated in the record · 17th century

Fragment of a Tapestry or Wall Hanging
Artist not stated in the record · ca. 1420–30

Edward Smith Stanley (1752–1834), Twelfth Earl of Derby, Elizabeth, Countess of Derby (Lady Elizabeth Hamilton, 1753–1797), and Their Son (Edward Smith Stanley, 1775–1851)
Angelica Kauffmann · ca. 1776

Game table
David Roentgen · ca. 1780–83
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. 563 matched · 24 examined · 9 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. 16668 matched · 40 examined · 38 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.2 shown
These figures describe the pass run at 2026-09-06 21:27 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.