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 “3c scarlet Washington trial color proof” — 64 records examined, 2 dropped by the rights gate.
Archives queried 2026-09-08 16:12 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 Rest on the Flight into Egypt
Gerard David · ca. 1512–15

3c scarlet Washington trial color proof
Artist not stated in the record · 1861

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

3c scarlet Washington trial color plate proof single
National Bank Note Company · 1861

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

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

The Capture of Andre by John Paulding, David Williams and Isaac Van Wart, at Tarrytown, New York, September 23, 1780
Currier & Ives · 1876

3c 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

3c 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

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

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

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

Virgin and Child
Hans Memling · Early sixteenth century

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

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

3c Washington trial color proof single
National Bank Note Company · 1861

Vue générale d'Esné (No. 3, pointe Nord)
Maxime Du Camp · April 27, 1850

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

Vue prise d'un Jardin du quartier Franc, au Kaire
Maxime Du Camp · January 9, 1850

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

Young Woman with Ibis
Edgar Degas · 1857–58; reworked 1860–62

10c 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. 42 matched · 24 examined · 2 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. 502181 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 16:12 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.