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. 23 shown for “Saucer with Butterflies” — 64 records examined, 3 dropped by the rights gate.
Archives queried 2026-09-01 17:29 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Saucer with Butterflies
Artist not stated in the record · 18th century

Tea Bowl and Saucer
Royal Worcester, English, established 1751 · ca. 1770

Saucer with butterflies
Artist not stated in the record · ca. 1700–1710

Tea Bowl and Saucer
Royal Worcester, English, established 1751 · ca. 1770

Cup and saucer with butterflies
Chantilly · ca. 1735

Tea Bowl and Saucer
Royal Worcester, English, established 1751 · ca. 1770

Saucer
Ignaz Preissler · ca. 1730

Tea Bowl and Saucer
Royal Worcester, English, established 1751 · ca. 1770

Saucer
Union Porcelain Works · ca. 1876

Tea Bowl and Saucer
Royal Worcester, English, established 1751 · ca. 1770

Saucer
Meissen Manufactory · 1724–25

Tea Bowl and Saucer
Royal Worcester, English, established 1751 · ca. 1770

Saucer with butterflies and melons
Artist not stated in the record · late 18th century

Cup and Saucer
Ott & Brewer, American, 1871 – 1893 · ca. 1880

Cup and saucer with the Chinese story of Sima Guang
Artist not stated in the record · 1700–1730

Cup
Le Nove Porcelain Manufactory, Italian, established ca. 1727 · ca. 1765

Saucer
Vienna · ca. 1730

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

Coffeepot (part of a service)
Meissen Manufactory · 1723–26

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

Vase with Butterflies
Artist not stated in the record · late 17th–early 18th century

Tea Bowl and Saucer
Le Nove Porcelain Manufactory, Italian, established ca. 1727 · ca. 1765

Cup with Butterflies
Artist not stated in the record · 18th century
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. 1207 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. 250594 matched · 40 examined · 3 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 2026-09-01 17:29 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.