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 “Glass bowl decorated with four busts in roundels” — 64 records examined, 8 dropped by the rights gate.
Archives queried 2026-08-27 18:37 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Glass bowl decorated with four busts in roundels
Artist not stated in the record · 4th century CE

Sugar Bowl, from a Breakfast Service (Sucrier; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813

Glass garland bowl
Artist not stated in the record · late 1st century BCE

Milk Jug, from a Breakfast Service (Pot à Lait; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813

Mirror
Johann Valentin Gevers · ca. 1710

Pierced Oval Cake Basket
Thomas Heming, English, 1723 – 1801 · 1758

Emperor Antoninus Pius
Antico (Pier Jacopo Alari Bonacolsi) · 1519–24

Cup, from a Breakfast Service (Tasse; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813

Glass bowl decorated with hunting scenes
Artist not stated in the record · 2nd half of the 4th–early 5th century CE

Cup, from a Breakfast Service (Tasse; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813
Bowl
Artist not stated in the record · second half 15th century

Textile
Artist not stated in the record · 12th–13th century

Bowl
Artist not stated in the record · second half 14th century

Sweetmeat Dish
Charles Nicolas Odiot, French, 1789 – 1868 · 1826–1838

Glass bowl decorated with geometric patterns
Artist not stated in the record · 4th century CE

Bowl
Artist not stated in the record · ca. 1810–15

Glass bowl fragment with gold leaf and painted decoration
Artist not stated in the record · 3rd–4th century CE

Obelisk
Artist not stated in the record · ca. 1700–25

Glass bowl with cut decoration
Artist not stated in the record · 4th century CE

Design for Overmirror Decoration, Blank Roundel with Grotesques, for the Noble Cabinet of the Palazzo Altieri
Giuseppe Barberi, Italian, 1746–1809 · 1789–1793

Glass bowl
Artist not stated in the record · 4th century CE

Teapot, from a Breakfast Service (Théière; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813

Glass bowl
Artist not stated in the record · 3rd–4th century CE

Decorative Motifs
Romolo Achille Liverani, Italian, 1809 - 1872 · 1810
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. 140 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. 7465552 matched · 40 examined · 8 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 18:37 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.