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 “Stamp seal (duck-shaped) with divine being” — 64 records examined, 28 dropped by the rights gate.
Archives queried 2026-08-28 14:21 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Stamp seal (duck-shaped) with divine being
Artist not stated in the record · 7th–6th century BCE

US Navy dress jumper worn by Lorenzo DuFau on USS Mason
Artist not stated in the record · 1944-1945

Seal
Jacob Boelen · ca. 1704

5c Seal of the US Naval Academy plate proof
Bureau of Engraving and Printing · May 18, 1937

Document Sealing With Multiple Seal Impressions
Artist not stated in the record · ca. 1386–1347 BCE

Bizen ware sake bottle in the shape of a wild duck
Terami Enkichi (died 1838) · early 19th century

Stamp seal (duck-shaped) with divine symbols
Artist not stated in the record · 7th century BCE

"Scientific American"
Enos Richardson & Company · ca. 1890

Stamp seal (duck-shaped) with divine symbol
Artist not stated in the record · 7th–6th century BCE

Georgia marriage license between Ezekiel Leonard and Marry Hammond
Artist not stated in the record · January 8, 1869

Royal or divine figure with high conical headdress
Artist not stated in the record · ca. 18th–17th century BCE

5c Seal of the US Naval Academy die proof attached to plate proof
Bureau of Engraving and Printing · 1937

Stamp Seal in the Shape of a Duck
Artist not stated in the record · ca. 1550–1300 BCE

Rotary Perforating Machine
Crown Cork & Seal Company · 1918 - 1939 (BEP)

Stamp Seal in Shape of a Cat
Artist not stated in the record · ca. 1525–1504 BCE

Mail Early with Christmas Stamps poster
Artist not stated in the record · 1967

Stamp seal (conoid) with divine being
Artist not stated in the record · 7th–6th century BCE

Mail Early with Christmas Stamps poster
Artist not stated in the record · 1967

Stamp seal (octagonal pyramid) with divine being
Artist not stated in the record · 7th–6th century BCE

Letter written to William V. Brady
Artist not stated in the record · January 25, 1851

Stamp seal (scarab) with divine being
Artist not stated in the record · 9th–7th century BCE

American Postage Meter Company machine head
American Postage Meter Company · 1912

Ibex-Shaped Design Amulet Inscribed With A Crocodile and A Fish
Artist not stated in the record · ca. 1550–1300 BCE
Certificate, F. A. I., James H. Doolittle
Artist not stated in the record · 1925
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. 370 matched · 24 examined · 0 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. 276840 matched · 40 examined · 28 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 2026-08-28 14:21 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.