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 “Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766” — 64 records examined, 22 dropped by the rights gate.
Archives queried 2026-09-01 14:34 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Drop-front desk (secrétaire à abattant or secrétaire en cabinet)
Martin Carlin · ca. 1773

Four Knives with Porcelain Handles
Chantilly Porcelain Manufactory, French, active ca. 1725 - ca. 1789 · ca. 1735–1740

Potpourri vase (pot-pourri gondole)
Sèvres Manufactory · 1757

Knife with Porcelain Handle
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · ca. 1744

Vase (jasmin japonais)
Sèvres Manufactory · 1834

Knife with Porcelain Handle
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · 18th–19th century

Mug
Saint-Cloud factory · ca. 1730–35

Fork with Porcelain Handle
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · ca. 1744

Vase
Saint-Cloud factory · ca. 1695–1710

Jar
Artist not stated in the record · 1725–1750

Teapot
Saint-Cloud factory · ca. 1720–30

Jar (One of a Pair)
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · ca. 1725–1750

Teapot
Saint-Cloud factory · ca. 1725

Jar (One of a Pair)
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · ca. 1725–1750

Jar
Chantilly · ca. 1735–40

Knife with Porcelain Handle (One of Four)
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · ca. 1735–1740

Finch
Chelsea Porcelain Manufactory · ca. 1745

Cup and Trembleuse Saucer
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · ca. 1730

Saucer
Sèvres Manufactory · 1832

Knife with Porcelain Handle
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · 18th century

Soup plate
Sèvres Manufactory · 1838

Knife with Porcelain Handle
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · ca. 1740

Cup
Sèvres Manufactory · 1833

Fork with Porcelain Handle
Saint-Cloud Porcelain Manufactory, French, active by 1693 - 1766 · ca. 1740
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. 25 matched · 24 examined · 1 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. 1723 matched · 40 examined · 21 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 14:34 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.