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. 24 shown for “Nautilus shell cup with cover” — 64 records examined, 22 dropped by the rights gate.
Archives queried 2026-08-28 01:52 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Nautilus shell cup with cover
Artist not stated in the record · 19th century, after 16th century original
Footed Beaker
Artist not stated in the record · late 17th century
Nautilus shell cup with cover
Elkington & Co. · 19th century, after 17th century original
Chambered Nautilus
Artist not stated in the record
Cup with cover
Hans van Amsterdam · 1533/34
Design for ink stand
Lefebvre Manufactory, Tournai · 1800–1825
Nautilus cup
Artist not stated in the record · 1602
Covered Cup
Artist not stated in the record · late 18th century
Nautilus shell box
Artist not stated in the record · 1619/20, with later restorations
Covered Cup
Artist not stated in the record · late 18th century
Broth bowl with cover and stand (écuelle ronde et plateau rond)
Vincennes Manufactory · ca. 1752–53
Cup
Minton Ceramics Manufactory, English, established 1796 · early 19th century
Beaker with cover
Claude Charvet · 1746–57
Covered Cup
Artist not stated in the record · late 18th–early 19th century
Cup with Cover
Artist not stated in the record · 19th century
Covered Cup
Artist not stated in the record · late 18th–early 19th century
Cup with Cover
Artist not stated in the record · 19th century
Covered Broth Cup and Socketed Saucer
Manufacture de la Reine (Rue Thiroux, Paris), French, established 1776 · ca. 1785
Inlay: seated male with cup and palm frond
Artist not stated in the record · ca. 2600–2350 BCE
Standing Cup with Pineapple Pattern
Lorenz Tittecke, German, active 1597 – 1626 · ca. 1620
Small Drinking Cup (krause)
Artist not stated in the record · ca. 1530
Covered Two-Handled Cup and Saucer
Coalport Porcelain Factory, English, active late 18th - 20th centuries · ca. 1830
Coconut tankard
Andreas Fleischer · early 17th century
Serene Seascape with Abstract Doodle
William Trost Richards, American, 1833–1905 · 1890–1900
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. 32 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. 284094 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 2026-08-28 01:52 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.