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 “Angelo Mezzetti, Italian” — 24 records examined, 2 dropped by the rights gate.
Archives queried 2026-09-03 07:21 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.

Arms of Pope Pius IV (Giovanni Angelo Medici of Milan, reigned 1559–65)
Artist not stated in the record · mid-16th century

Mandolin
Angelo Mannello · 1900

Saint Jerome in the Wilderness
Antonio Rossellino · ca. 1470

The Crucifixion
Master of the Codex of Saint George · ca. 1330–35

Triton
Giambologna · 1590s

The Intercession of Christ and the Virgin
Lorenzo Monaco (Piero di Giovanni) · before 1402

Baptism of Christ
Alessandro Algardi · second half of the 17th century

Seated Hercules in the act of shooting at the stymphalian birds
Vittore Gambello · ca. 1515–20

Holy Roman Emperor Henry IV at Canossa
Ubaldo Gandolfi · ca. 1770–75

Seated satyr with silvered eyes
Andrea Briosco, called Riccio · second quarter of the 16th century

Adoring Angel
Piero di Giovanni Tedesco · ca. 1395–96

Saints John the Evangelist and Mary Magdalene
Italian, Neapolitan Follower of Giotto · ca. 1335–45
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. 461 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-09-03 07:21 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.