OpenTwo 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 Brooch with Diamonds” — 64 records examined, 7 dropped by the rights gate.
Archives queried 2026-09-06 05:03 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 brooch with diamond
Artist not stated in the record · 16th century
Brooch
Carlo Giuliano · before 1896
Design for Brooch with Diamonds
Artist not stated in the record · 16th century
Table clock with calendar
Lucien Falize · 1881
Design for brooch with diamonds and pearls
Artist not stated in the record · 16th century
Wing Brooch
Artist not stated in the record · 100–200
Design for brooch with octagonal diamond and three figures
Artist not stated in the record · 16th century
Brooch
Edward Burr · ca. 1836–50
Design for Brooch with Three Diamonds
Artist not stated in the record · 16th century
Corsage Piece
Tiffany & Co. · 1880–95
Design for brooch with green diamonds and pearls
Artist not stated in the record · 16th century
Dragonfly brooch
Edgar Bense · ca. 1890
Design for brooch with round diamond
Artist not stated in the record · 16th century
Brooch
Jaques & Marcus · ca. 1882–92
Design for oblong brooch with diamond
Artist not stated in the record · 16th century
Watch case
George Harrison · probably ca. 1770
Design for brooch with round diamond
Artist not stated in the record · 16th century
Congressional Presentation Sword and Scabbard of Major General John E. Wool (1784–1869)
Samuel Jackson · 1854–55
Design for a Brooch with Oval Diamond
Artist not stated in the record · 16th century
Cluster Brooch with Letters Spelling "Amor"
Artist not stated in the record · mid-15th century
Design for Brooch with Dolphins and Diamonds
Artist not stated in the record · 16th century
Duchess of Devonshire Portrait Diamond
Artist not stated in the record · 19th century
Design for brooch with couped pediment and diamond
Artist not stated in the record · 16th century
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. 685 matched · 24 examined · 7 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. 641948 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 05:03 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.