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 “Reverse Cassetta frame (pair with 1975.1.2110)” — 64 records examined, 12 dropped by the rights gate.
Archives queried 2026-08-31 14:06 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Reverse Cassetta frame (pair with 1975.1.2110)
Artist not stated in the record · mid-17th century
Pair of Armchairs
John Henry Belter, American, b. Germany, 1804 – 1863 · design: 1850; Crest decoration design: 1849
Portrait of a Young Man
Hans Memling · ca. 1472–75
"Chuck Luck Pocket Match Safe and Dice Box"
Artist not stated in the record · patented 1893
Reverse cassetta frame
Artist not stated in the record · ca. 1630
Tile
J. & J. G. Low Art Tile Works, 1877 – 1883 · late 19th century
Cassetta frame
Artist not stated in the record · ca. 1520
Quail and Floral Decoration
Gorham Manufacturing Company, Providence, Rhode Island, USA, founded 1818 · ca. 1886
Portrait of a Woman, Possibly a Nun of San Secondo; (verso) Scene in Grisaille
Jacometto (Jacometto Veneziano) · ca. 1485–95
Designs for Gobelins Tapestry, October (Les Mois Grotesques par Bandes)
Claude Audran III, French, 1658 - 1734 · 1709–10
Tabernacle House Altar with the Adoration of the Shepherds, the Adoration of the Magi, and the Annunciation.
Reinhold Vasters · second half 16th century (panels); ca. 1865–90 (frame)
Designs for Gobelins Tapestry, June (Les Mois Grotesques par Bandes)
Claude Audran III, French, 1658 - 1734 · 1709–10
The Crucifixion
Pietro Lorenzetti · 1340s
Designs for Gobelins Tapestry, April (Les Mois Grotesques par Bandes)
Claude Audran III, French, 1658 - 1734 · 1709–10
Engaged arched cassetta frame
Artist not stated in the record · 1460–70
The Lion Strangler
Artist not stated in the record · early–mid-12th century
Mars and Venus United by Love
Paolo Veronese (Paolo Caliari) · 1570s
Cabinet card of an unidentified child
Artist not stated in the record · 1890s
Tondo mirror frame
Benedetto da Maiano · ca. 1480
Fragments
Artist not stated in the record · ca. 1246
Pair of Minbar Doors
Artist not stated in the record · ca. 1325–30
Henry Lee at Paulus Hook, United States, 1779 (U.S. Mint copy dies: Original obverse die paired with later Barber reverse)
United States Mint · 1779
The Birth of the Virgin
Fra Carnevale (Bartolomeo di Giovanni Corradini) · 1467
Carte-de-visite of a woman with birdcages in Napa, California
Artist not stated in the record · 1865-1888
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. 363 matched · 24 examined · 0 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. 282068 matched · 40 examined · 12 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 2026-08-31 14:06 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.