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 “Design for Oblong Brooch” — 64 records examined, 9 dropped by the rights gate.
Archives queried 2026-09-06 10:53 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Brooch
Marcus and Co. · ca. 1900

Design for Oblong Brooch
Artist not stated in the record · 16th century

Brooch
Carlo Giuliano · before 1896

Design for oblong brooch with diamond
Artist not stated in the record · 16th century

Wing Brooch
Artist not stated in the record · 100–200

Design for Brooch
Artist not stated in the record · 1820–30

China table
Thomas Chippendale · ca. 1755

Design for a Brooch
Artist not stated in the record · 1820

Brooch
Edward Burr · ca. 1836–50

Design for a Brooch with Putti
Artist not stated in the record · 16th century

Disk Brooch
Artist not stated in the record · 600–650

Design for Brooch with Moses
Artist not stated in the record · 16th century

Oval Brooch
Artist not stated in the record · 900–1000

Design for a Brooch with Winged Boy
Artist not stated in the record · 16th century

Brooch
Ferdinand Hauser · ca. 1912–13

Design for Brooch and Pendant
Artist not stated in the record · 16th century

Disk Brooch
Artist not stated in the record · early 600s

Design for an Oblong Plaster Ceiling
George Richardson, British, ca. 1736 - 1813 · 1780–90

Parure: tiara, necklace, and brooch
Luigi Saulini · mid-19th century

Design for Oblong Plaster Ceiling for the First Hall, Carlton House, Pall Mall, London, England
Henry Holland, British, 1745 - 1806 · 1786–90

Terminal for an Open Ring Brooch
Artist not stated in the record · ca. 950

Design for Ceiling Decoration with Central Oblong
Giuseppe Barberi, Italian, 1746–1809 · 1746–1809

Brooch with Greek letters
Castellani · ca. 1860

Design for a Painted Oblong Ceiling
Andrea Pazzi, Italian, active 18th century · 1700–25
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. 296 matched · 24 examined · 9 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. 494641 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 2026-09-06 10:53 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.