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. 23 shown for “Marble round altar with a frieze of animals and masks” — 64 records examined, 3 dropped by the rights gate.
Archives queried 2026-09-02 05:47 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Marble round altar with a frieze of animals and masks
Artist not stated in the record · 1st century CE
Title Page
D. Antoine Pierretz, French, active 1647 · 1647-55
Pendant mask of Ìyọ́bà Idià
Ìgbèsànmwà (ivory- and wood- carving guild) artists · 16th century
Album of Designs for Architectural Details and Ornament
D. Antoine Pierretz, French, active 1647 · 1647-55
Marble sarcophagus with the Triumph of Dionysos and the Seasons
Artist not stated in the record · ca. 260–270 CE
Two Alternative Designs for Altars
Juan Dolívar, Spanish, active in France, 1641–1692 · 1690
Marble sarcophagus with garlands
Artist not stated in the record · ca. 200–225 CE
Altar Mensa for the Capella Paolina (Borghese Chapel), Santa Maria Maggiore, Rome, Italy
Mario Asprucci The Younger, Italian, 1764 – 1804 · ca. 1760
Frieze fragment
Artist not stated in the record · early 16th century
Design for a Chimneypiece
Artist not stated in the record · ca. 1800
Two Designs for Altars and a Frieze
D. Antoine Pierretz, French, active 1647 · 1648
Doorway from the Church of San Nicolò, San Gemini
Artist not stated in the record · carved 1000s, assembled 1100s or 1200s
Six Designs for Altars
Juan Dolívar, Spanish, active in France, 1641–1692 · 1690
Bacchanal: A Faun Teased by Children
Gian Lorenzo Bernini · ca. 1616–17
Five Alternative Designs for Altars
Juan Dolívar, Spanish, active in France, 1641–1692 · 1690
Relief Panel with Two Griffins Drinking from a Cup
Artist not stated in the record · late 9th–early 10th century
Chimney Piece Design
D. Antoine Pierretz, French, active 1647 · 1647
Portal from the Church of San Leonardo al Frigido
Biduinus · ca. 1175
Design for a Candlestick
Michelangelo Buonarroti, Italian, 1475–1564 · 1520–30
Side table (commode en console)
Bernard II van Risenburgh · ca. 1755–60
Design for an Incense Burner
Artist not stated in the record · late 18th century
Autumn (one of a pair)
Jean-Baptiste Pigalle · 1742–45
Two Alternative Designs for Altars
Juan Dolívar, Spanish, active in France, 1641–1692 · 1690
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. 157 matched · 24 examined · 3 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. 4877272 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 2026-09-02 05:47 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.