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 “24c Washington trial color card proof” — 64 records examined, 9 dropped by the rights gate.
Archives queried 2026-09-08 12:29 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 Card Players
Paul Cézanne · 1890–92

24c Washington trial color card proof
Artist not stated in the record · 1881

The Rest on the Flight into Egypt
Gerard David · ca. 1512–15

24c Washington trial color card proof
Artist not stated in the record · 1881

The Agony in the Garden
Artist not stated in the record · ca. 1390

24c Washington trial color card proof
Artist not stated in the record · 1881

The Baptism of Christ
Artist not stated in the record · ca. 1390

24c Washington trial color card proof
Artist not stated in the record · 1881

Still Life with Apples and a Pot of Primroses
Paul Cézanne · ca. 1890

24c Washington trial color card proof
Artist not stated in the record · 1881

Chair (Sgabello)
Workshop of Giuliano da Maiano (1432–1490) and Benedetto da Maiano (1442–1497) · ca. 1489–91

10c Washington trial color card proof
Artist not stated in the record · 1881

Washington Arch, from the Transparencies series (N137) issued by W. Duke, Sons & Co. to promote Honest Long Cut Tobacco
W. Duke, Sons & Co. · late 1880s

12c Washington trial color card proof
Artist not stated in the record · 1881

Saint Anthony the Abbot in the Wilderness
Sano di Pietro (Ansano di Pietro di Mencio) · ca. 1440

10c Washington trial color card proof
Artist not stated in the record · 1881

Tombeau de Sidi-Ambarek, à Garara
Maxime Du Camp · June 19, 1850

3c Washington trial color card proof
Artist not stated in the record · 1881

The Fortune-Teller
Georges de La Tour · probably 1630s

12c Washington trial color card proof
Artist not stated in the record · 1881

Pair of Over-and-Under Tube-Lock Percussion Pistols with Case and Accessories
Durs Egg · ca. 1805–10; converted after 1818

10c Washington trial color card proof
Artist not stated in the record · 1881

Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88

3c Washington trial color card proof
Artist not stated in the record · 1881
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. 57 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. 684049 matched · 40 examined · 0 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 2026-09-08 12:29 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.