Two 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 “Giovanni Agostino Cassana” — 24 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-01 14:43 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.

Hunters with Dead Game in a Landscape
Giovanni Agostino Cassana · 1600–1800

Saint Bridget of Sweden Receiving the Rule of Her Order
Agostino d'Antonio di Duccio · 1459

Madonna and Child with Saints
Giovanni di Paolo (Giovanni di Paolo di Grazia) · 1454

Christ Crowned with Thorns
Antonello da Messina (Antonello di Giovanni d'Antonio)

Scenes from the Life of Christ
Giovanni Baronzio · mid-1340s

Madonna and Child Enthroned with Saints
Raphael (Raffaello Sanzio or Santi) · ca. 1504

The Exultation of Saint Nicholas of Tolentino
Giovanni di Paolo (Giovanni di Paolo di Grazia) · ca. 1450

Madonna and Child Enthroned with Saint John the Evangelist, Saint Peter, Saint Agnes, Saint Catherine of Alexandria, Saint Lucy, an Unidentified Female Saint, Saint Paul, and Saint John the Baptist, with Eve and the Serpent; the Annunciation
Paolo di Giovanni Fei · 1390s

Frieze with Eros and a Siren
Agostino Veneziano (Agostino dei Musi) · 1530

Ornamental Panel
Agostino Veneziano (Agostino dei Musi) · ca. 1514–36

Ornamental Panel
Agostino Veneziano (Agostino dei Musi) · ca. 1514–36

Ornamental Panel
Agostino Veneziano (Agostino dei Musi) · ca. 1514–36
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. 91 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-09-01 14:43 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.