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 “Foundation Deposit Plaque in the Form of a Trussed Duck” — 64 records examined, 28 dropped by the rights gate.
Archives queried 2026-08-29 16:25 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Foundation Deposit Plaque in the Form of a Trussed Duck
Artist not stated in the record · ca. 1207–1200 BCE

Bracket
Artist not stated in the record · 1755–60

Plaque with the Descent from the Cross
Artist not stated in the record · ca. 1320–40

Trophy awarded to the Texas Southern University Debate Team
Artist not stated in the record · 1967

Foundation peg in the form of the forepart of a lion
Artist not stated in the record · ca. 2200–2100 BCE

Views of the National Zoological Park in Washington, DC, showing Geese and Ducks
Gruber, Martin A · 1919

Perfume Vessel in the Shape of Two Trussed Ducks
Artist not stated in the record · ca. 1580–1550 B.C.

Views of the National Zoological Park in Washington, DC, showing Ducks
Gruber, Martin A · 1919

Foundation Deposit Plaque in the Form of a Lotus
Artist not stated in the record · ca. 1207–1200 BCE

Views of the National Zoological Park in Washington, DC, showing Ducks
Gruber, Martin A · 1919

Foundation Deposit Plaque in the Form of a Haunch
Artist not stated in the record · ca. 1207–1200 BCE

Views of the National Zoological Park in Washington, DC, showing Geese and Ducks
Gruber, Martin A · 1919

Foundation Deposit Plaque in the Form of a Bound Ox
Artist not stated in the record · ca. 1207–1200 BCE

Views of the National Zoological Park in Washington, DC, showing Ducks
Gruber, Martin A · 1919

Plaque in the Form of a Slaughtered Ox
Artist not stated in the record · ca. 1166–1158 BCE

Views of the National Zoological Park in Washington, DC, showing Ducks
Gruber, Martin A · 1919

Terracotta vase in the form of a duck
Artist not stated in the record · 6th century BCE

Views of the National Zoological Park in Washington, DC, showing Ducks
Gruber, Martin A · 1919

Foundation Deposit Plaque in the Form of an Ox Head
Artist not stated in the record · ca. 1207–1200 BCE

Virola papillosa Ducke
Artist not stated in the record · 17 Oct 1945

Foundation deposit plaque of Amenemhat I
Artist not stated in the record · ca. 1981–1952 B.C.

Leather Glove
Artist not stated in the record · late 19th century

Foundation deposit plaque of Amenemhat I
Artist not stated in the record · ca. 1981–1952 B.C.

Design for a Garden
Jan David Zocher the Younger, 1791–1870 · 1856
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. 146 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. 7483692 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 2026-08-29 16:25 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.