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 “Confederate through the lines cover” — 64 records examined, 9 dropped by the rights gate.
Archives queried 2026-08-31 21:25 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Lupona (royal seat)
Ngongo ya Chintu, formerly known as the "Buli Master" · ca. 1840–1870

Confederate through the lines cover
Artist not stated in the record · June 21, 1861

The Harvesters
Pieter Bruegel the Elder · 1565

Confederate through the lines cover
Artist not stated in the record · 1861

Hermann von Wedigh III (died 1560)
Hans Holbein the Younger · 1532

Confederate through the lines cover
Artist not stated in the record · June 29, 1861

Wine container (Hu)
Artist not stated in the record · late 9th–early 8th century BCE

letter from Confederate through the lines cover
Artist not stated in the record · June 20, 1861

Wine container (Hu)
Artist not stated in the record · late 9th–early 8th century BCE

Confederate semi-official cover
Artist not stated in the record · 1861-1865

The Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38

Confederate flag-of-truce cover
Artist not stated in the record · February 12, 1864

The Journey of the Magi
Sassetta (Stefano di Giovanni) · ca. 1433–35

Confederate blockade-run cover
Artist not stated in the record · 1861-1865

Interior of the Oude Kerk, Delft
Emanuel de Witte · probably 1650

Confederate cover
Artist not stated in the record · 1864

Writing table (bureau plat)
Gilles Joubert · 1759

Confederate blockade-run cover
Artist not stated in the record · 1863

Two Men Contemplating the Moon
Caspar David Friedrich · ca. 1825–30

Confederate 2c Andrew Jackson on semi-official imprinted envelope
Artist not stated in the record · 1861-1865

Christ and the Adulteress
Lucas Cranach the Younger and Workshop · ca. 1545–50

Confederate cover
Artist not stated in the record · 1864
![The Farnese Table, by Jacopo [Giacomo] Barozzi da Vignola](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fes%2Fweb-large%2FDP-42913-001.jpg&w=3840&q=75)
The Farnese Table
Jacopo [Giacomo] Barozzi da Vignola · ca. 1565–73

Express from Richmond to Louisville posted to New York cover
Artist not stated in the record · August 8, 1861
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. 528 matched · 24 examined · 3 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. 1406993 matched · 40 examined · 6 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 21:25 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.