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 “Glass mosaic jar” — 64 records examined, 26 dropped by the rights gate.
Archives queried 2026-09-01 17:16 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Glass mosaic jar
Artist not stated in the record · 2nd–early 1st century BCE
Mosaic Glass Bowl
Unidentified (Roman Empire) · 1st century BC-1st century AD
Mosaic floor panel
Artist not stated in the record · 2nd century CE
Mosaic plaque depicting cartouche motif
Artist not stated in the record · 100 BCE-100 CE
Jar
Artist not stated in the record · possibly 3rd century
Mosaic glass
Unidentified · 50 B.C.-50 A.D.
Jar
Artist not stated in the record · 3rd–4th century
Mosaic Glass Patella Cup
Unidentified (Roman Empire) · 1st century BC-2nd century AD
Jar
Artist not stated in the record · possibly 2nd–4th century
Fused mosaic plaque
Artist not stated in the record · 100 BCE-100 CE
Jar
Artist not stated in the record · 7th–11th century
Mosaic Glass Goblet
Ercole Barovier, born 1889-died 1974 · ca. 1914-1928
Jar
Artist not stated in the record · late 3rd–5th century
Columnar rod and plate mosaic
Artist not stated in the record · 305 BCE-14 CE
Jar
Artist not stated in the record · about 4th century
Columnar rod mosaic
Artist not stated in the record · 305 BCE-14 CE
Jar
Chantilly · ca. 1735–40
Fragment of inlay. Columnar rod mosaic
Artist not stated in the record · 305 BCE-14 CE
Jar
Artist not stated in the record · ca. 1300–1080 BCE
Fragment of inlay. Columnar rod and plate mosaic
Artist not stated in the record · 305 BCE-14 CE
Fragment of a Floor Mosaic with a Personification of Ktisis
Artist not stated in the record · 500–550, with modern restoration
Fragment. Columnar rod and plate mosaic
Artist not stated in the record · 305 BCE-14 CE
Glass garland bowl
Artist not stated in the record · late 1st century BCE
Fragment of striped inlay. Plate mosaic
Artist not stated in the record · 305 BCE-14 CE
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. 1313 matched · 24 examined · 2 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. 88004 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 2026-09-01 17:16 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.