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. 24 shown for “Class S: The Canessa Class of Head Vases” — 64 records examined, 30 dropped by the rights gate.
Archives queried 2026-08-27 01:18 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Terracotta oinochoe (jug) in the form of a woman's head
Class S: The Canessa Class of Head Vases · ca. 460–450 BCE

Auto vase, cone
Artist not stated in the record · ca. 1913-1914

Terracotta kantharos (drinking cup with high handles)
Class W: The Persian Class of Head Vases · late 5th century BCE

Bouquet holder, classical heads, with case
Artist not stated in the record · ca.1830-1920

The Dance Class
Edgar Degas · 1874

Bouquet holder, agate, mother of pearl
Artist not stated in the record · ca.1830-1920

Terracotta aryballos (perfume bottle) in the shape of a woman's head
Oxford Class of Head Vases · ca. 500 BCE

Bouquet holder, birds and cherry motif
Artist not stated in the record · ca.1830-1920

Terracotta oinochoe (jug) in the form of a woman's head
Class N: The Cook Class of Head Vases · 2nd quarter of 5th century BCE

Bouquet holder, incised arches
Artist not stated in the record · ca. 1869

Terracotta mug in the form of a woman's head
Class G: The London Class of Head Vases · ca. 500–490 BCE

Bouquet holder, serpent and leaves
Artist not stated in the record · ca.1830-1920

Terracotta lekythos (oil flask)
Pagenstecher Class · mid-4th century BCE

Bouquet holder, beads, tripod, with case
Artist not stated in the record · ca. 1869-1870

Terracotta mug in the form of a satyr's head
Carlsruhe Painter · ca. 460 BCE

Bouquet holder, oak leaf motif
Artist not stated in the record · ca.1830-1920

Terracotta kantharos (drinking cup) in the form of the heads of Herakles and of a woman
Syriskos Painter · ca. 470 BCE

Bouquet holder, light blue enamel handle
Artist not stated in the record · ca.1830-1920

The Third-Class Carriage
Honoré Daumier · 1864

Bouquet holder, mirrors with bone handle
Artist not stated in the record · ca.1830-1920

Terracotta kantharos (drinking cup with two vertical handles): heads of a satyr and a woman
Aison · ca. 420 BCE

Bouquet holder, enamel on vase and handle
Artist not stated in the record · ca.1830-1920

Terracotta hydria (water jar)
Class of Hamburg 1917.477 · ca. 510–500 BCE

Bouquet holder, grape and leaf motif
Artist not stated in the record · ca.1830-1920
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. 318 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. 3498594 matched · 40 examined · 28 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 2026-08-27 01:18 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.