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 “Order for printing of 1882 stamp issue and postal cards” — 64 records examined, 4 dropped by the rights gate.
Archives queried 2026-08-31 21:44 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Antoine Laurent Lavoisier (1743–1794) and Marie Anne Lavoisier (Marie Anne Pierrette Paulze, 1758–1836)
Jacques Louis David · 1788
Order for printing of 1882 stamp issue and postal cards
Artist not stated in the record · April 10, 1882
Oedipus and the Sphinx
Gustave Moreau · 1864
Order for printing of 1882 stamp issue and postal cards in letter
Artist not stated in the record · April 10, 1882
ex "Kurtz" Violin
Andrea Amati · ca. 1560
1870 Issue card plate proof envelope
Artist not stated in the record · 1893
Madonna and Child Enthroned with Saints
Raphael (Raffaello Sanzio or Santi) · ca. 1504
1851 Issue card plate proof envelope
Artist not stated in the record · 1893
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
1847 Issue card plate proof envelope
Artist not stated in the record · 1893
Wolf and Fox Hunt
Peter Paul Rubens · ca. 1616
1890 Issue card plate proof envelope
Artist not stated in the record · 1893
View of Toledo
El Greco (Domenikos Theotokopoulos) · ca. 1599–1600
1861 Issue card plate proof envelope
Artist not stated in the record · 1893
The Harvesters
Pieter Bruegel the Elder · 1565
1c Franklin reprint cardboard plate proof pane
Artist not stated in the record · 1875
The Agony in the Garden
Raphael (Raffaello Sanzio or Santi) · ca. 1504
1869 Issue card plate plate proof envelope
Artist not stated in the record · 1893
“Mount Utsu” (Utsu no yama), from The Tales of Ise (Ise monogatari)
Tawaraya Sōtatsu · ca. 1634
2c Honolulu Harbor order to print stamps
Artist not stated in the record · June 21, 1899
Pope Benedict XIV (Prospero Lambertini, 1675–1758)
Pierre Hubert Subleyras · 1746
$5,000 Washington Documentary Persian Rug revenue stamp trial color essay
Artist not stated in the record · 1871
Don Andrés de Andrade y la Cal
Bartolomé Estebán Murillo · ca. 1665–72
$5,000 Washington Documentary Persian Rug revenue stamp trial color essay
Artist not stated in the record · 1871
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. 234 matched · 24 examined · 4 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. 3166798 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 2026-08-31 21:44 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.