OpenTwo 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 “10c Washington trial color card proof” — 64 records examined, 7 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
10c Washington trial color card proof
Artist not stated in the record · 1881
The Rest on the Flight into Egypt
Gerard David · ca. 1512–15
10c Washington trial color card proof
Artist not stated in the record · 1881
The Card Party
Caspar Netscher · ca. 1665
10c 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
10c 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
10c Washington trial color card proof
Artist not stated in the record · 1881
Gardner's Gallery, 7th and D Streets, Washington, D.C.
Alexander Gardner · 1864
5c & 10c composite large die trial color proof
Artist not stated in the record · 1847
Chair (Sgabello)
Workshop of Giuliano da Maiano (1432–1490) and Benedetto da Maiano (1442–1497) · ca. 1489–91
12c Washington trial color card proof
Artist not stated in the record · 1881
Virgin and Child
Hans Memling · Early sixteenth century
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
12c 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
Washington Bridge, 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
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
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. 74 matched · 24 examined · 7 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. 684133 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.