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 “Set of twelve red terracotta balls” — 64 records examined, 16 dropped by the rights gate.
Archives queried 2026-09-07 04:55 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Set of twelve red terracotta balls
Artist not stated in the record · late 4th or early 3rd century BCE

Kourt King croquet game set balls from Rock Rest Tourist Home
Artist not stated in the record · mid 20th century

King's attendant
Giuseppe Gori · second half 18th century

Kourt King croquet game set stakes from Rock Rest Tourist Home
Artist not stated in the record · mid 20th century

Elderly king
Artist not stated in the record · second half 18th century

Necklace and pendant
Artist not stated in the record · ca. 1870

Terracotta column-krater (bowl for mixing wine and water)
Group of Boston 00.348 · ca. 360–350 BCE

Kourt King croquet game set caddy from Rock Rest Tourist Home
Artist not stated in the record · mid 20th century

King's attendant
Lorenzo Mosca · second half 18th century

Bracelet
Artist not stated in the record · ca. 1830

King
Nicola Ingaldi · second half 18th century

Bracelet
Artist not stated in the record · ca. 1830

King's attendant
Giovanbattista Polidoro · second half 18th century

Necklace
Artist not stated in the record · ca. 1830

King's attendant
Artist not stated in the record · second half 18th century

Kourt King croquet game set mallets from Rock Rest Tourist Home
Artist not stated in the record · mid 20th century

Moorish king
Artist not stated in the record · second half 18th century

Kourt King croquet game set manual from Rock Rest Tourist Home
Artist not stated in the record · mid 20th century

Terracotta lekythos (oil flask)
Eretria Painter · ca. 420 BCE

Ornamental Spring-loaded Cherry Pitter
François Nicoud, French, active Paris ca. 1875-1890 · ca. 1890

Set of wine cups with flowers of the twelve months
Artist not stated in the record

Architectural panels from the Western Methodist Book Concern Building, Chicago, Illinois (Harry B. Wheelock, architect)
Northwestern Terra Cotta, USA · ca. 1899

Terracotta pelike (jar)
Somzée Painter · ca. 420–410 BCE

Western Methodist Book Concern Building, Chicago, Illinois (Harry Bergen Wheelock, architect)
Northwestern Terra Cotta, USA · ca. 1899
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. 500 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. 2885720 matched · 40 examined · 16 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 2026-09-07 04:55 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.