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. 12 shown for “Onyx cameo bust of Caracalla” — 24 records examined, 1 dropped by the rights gate.
Archives queried 2026-08-27 08:55 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.
Onyx cameo bust of Caracalla
Artist not stated in the record · ca. 211–217 CE
Pendant Brooch with Cameo of Enthroned Virgin and Child and Christ Pantokrator
Artist not stated in the record · late 1000s–1100s (cameo); 1100s–1300s (mount)
Sardonyx cameo portrait of the Emperor Augustus
Artist not stated in the record · ca. 41–54 CE
Bust of a Roman Emperor / Bust of a man of African descent
Artist not stated in the record · mid-16th century
Bust of a bearded man in a cap
Luigi Saulini · mid-19th century
Cameo Ring
William Brown · 1800–25
A "Marlborough Gem": Bust of a woman in profile, her back to the spectator
Artist not stated in the record · 19th century
Bust of the Emperor Vespasian (Titus Flavius Vespasianus, 9–79)
Artist not stated in the record · probably mid-18th century
Bust of a young woman
Giuseppe Girometti · early 19th century
Bust of Hercules
Artist not stated in the record · late 16th–early 17th century
Parure: tiara, necklace, and brooch
Luigi Saulini · mid-19th century
Bust of an athlete
Artist not stated in the record · first half 18th 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. 28 matched · 24 examined · 1 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-27 08:55 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.