OpenTwo 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. 22 shown for “Cup with Butterflies” — 64 records examined, 8 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.
Cup with Butterflies
Artist not stated in the record · 18th century
Cup
Le Nove Porcelain Manufactory, Italian, established ca. 1727 · ca. 1765
Cup
Artist not stated in the record · second half 19th century
Tea Bowl and Saucer
Royal Worcester, English, established 1751 · ca. 1770
Cup and saucer with butterflies
Chantilly · ca. 1735
Cup, from a Breakfast Service (Tasse; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813
Cup
Artist not stated in the record · cup 900–1100 CE; stem, base, and mounts ca. 1655–60
Cup, from a Breakfast Service (Tasse; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813
Cup
Union Porcelain Works · ca. 1876
Cup and Saucer
Ott & Brewer, American, 1871 – 1893 · ca. 1880
Cup
Artist not stated in the record · early 18th century
Teapot, from a Breakfast Service (Théière; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813
Cup
Artist not stated in the record · 500–200 BCE
Cup
Artist not stated in the record · 500–200 BCE
Cup
Artist not stated in the record · 500–200 BCE
Tray, from a Breakfast Service (Plateau; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813
Cup
Artist not stated in the record · ca. 1146–1138 BCE
Sugar Bowl, from a Breakfast Service (Sucrier; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813
Cup
Artist not stated in the record · 9th–10th century
Milk Jug, from a Breakfast Service (Pot à Lait; Déjeuner Mosaïque Florentine)
Sèvres Porcelain Manufactory, French, established 1756 · 1813
Cup
Tiffany & Co. · ca. 1893
Female Mask and Butterflies
Gorham Manufacturing Company, Providence, Rhode Island, USA, founded 1818 · ca. 1900
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. 15794 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. 254765 matched · 40 examined · 7 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.