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. 14 shown for “Pinback button against the Vietnam War” — 62 records examined, 44 dropped by the rights gate.
Archives queried 2026-09-04 21:45 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Charles Maurice de Talleyrand Périgord (1754–1838), Prince de Bénévent
baron François Gérard · 1808

Pinback button against the Vietnam War
Artist not stated in the record · 1964-1973

Congressional Presentation Sword with Scabbard of Colonel Marinus Willett (1740–1830)
C. Liger · hallmarked for 1785–86

Pinback button for the National Chicano Moratorium Committee
Artist not stated in the record · 1969

Pinback button for the Milwaukee 14
Artist not stated in the record · 1968

Pinback button featuring Abraham Lincoln and Frederick Douglass
Unidentified · 1960s

Pinback button for Channing Phillips' presidential campaign
Artist not stated in the record · 1968

Pinback button for the Assembly of Unrepresented People
Artist not stated in the record · August 6-9, 1965

Pinback button advocating against child abuse
Artist not stated in the record · 1950-2000

Pinback button reading "Students for Mary Ellen"
Artist not stated in the record · 2019

Pinback button advocating against drugs
Artist not stated in the record · 1950-2000

Pinback button promoting African Liberation Day
Artist not stated in the record · 1977

Pinback button promoting All-African People's Revolutionary Party
Artist not stated in the record · after 1958

Pinback button stating "Do the Right Thing!"
Artist not stated in the record · 1994
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. 22 matched · 22 examined · 20 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.2 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1236810 matched · 40 examined · 24 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 2026-09-04 21:45 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.