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. 20 shown for “On His Majesty's Service cover sent from FPO 122 on album page” — 48 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-01 00:58 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Madame Georges Charpentier (Marguerite-Louise Lemonnier, 1848–1904) and Her Children, Georgette-Berthe (1872–1945) and Paul-Emile-Charles (1875–1895)
Auguste Renoir · 1878

On His Majesty's Service cover sent from FPO 122 on album page
Artist not stated in the record · March 27, 1941

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

On His Majesty's Service cover sent from FPO 164 on album page
Artist not stated in the record · February 21, 1941

"Portrait of Qilich Khan Turani", Folio from the Shah Jahan Album
La'lchand · recto: ca. 1640; verso: ca. 1530–50

On His Majesty's Service cover sent from FPO 164 on album page
Artist not stated in the record · March 24, 1941

Rosette Bearing the Name and Title of Emperor Aurangzeb (Recto), from the Shah Jahan Album
Mir 'Ali Haravi · recto: ca. 1658; verso: ca. 1630–40

On His Majesty's Service cover sent from FPO 26 on album page
Artist not stated in the record · December 16, 1936

Nine Songs
Zhao Mengfu · 14th–15th century

On Active Service cover sent from FPO 122 on album page
Artist not stated in the record · July 9, 1940

“Butterflies” (Kochō), from the Tale of Genji
Tosa Mitsuyoshi · late 16th–early 17th century

On His Majesty's Service FPO cover on album page
Artist not stated in the record · May 1, 1941

Two Tahitian Women
Paul Gauguin · 1899

On His Majesty's Service FPO 731 cover on album page
Artist not stated in the record · July 10, 1945

Charles de Cossé (1506–1563), Count of Brissac
Jean Clouet · ca. 1535

Certified Official FPO 201 cover on album page
Artist not stated in the record · November 15, 1941

On Active Service cover sent from FPO 120 on album page
Artist not stated in the record · October 27, 1941

Active Service form cover sent from FPO 154 on album page
Artist not stated in the record · February 26, 1942

cover sent from FPO 67 on album page
Artist not stated in the record · July 5, 1941

postcard sent from FPO 148 on album page
Artist not stated in the record · 1942
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. 8 matched · 8 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.8 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1295554 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 2026-09-01 00:58 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.