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. 19 shown for “Lamp Handle with Dolphins” — 64 records examined, 33 dropped by the rights gate.
Archives queried 2026-08-28 08:34 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Lamp Handle with Dolphins
Artist not stated in the record · 4th–5th century

Design for a Coffee Urn
Johann Nepomuk · 1821-1823

Vase
Tucker Factory · 1828–36

Project for an Oil Lamp with Alternative Suggestions
Artist not stated in the record · ca. 1780

Jug Decorated with Dolphins and Birds
Artist not stated in the record · ca. 1750–1550 B.C.

Oil Lamp with Snake Handle
Artist not stated in the record · ca. 1880

Rothschild lamp
Andrea Briosco, called Riccio · ca. 1510–20

Design for a Salt Cellar and Egg Dish with Fork and Spoon
Ottavio Strada, Italian, 1550 – 1612 · late 16th century

Glass bottle with dolphin handles
Artist not stated in the record · 3rd–early 4th century CE

Lamp
Artist not stated in the record · 17th century

Glass bottle with dolphin handles
Artist not stated in the record · late 3rd–early 4th century CE

Oil lamp
Artist not stated in the record · 1st century BC

Terracotta lamp handle
Artist not stated in the record · 2nd century CE

Design for the Base of an Oil Lamp
Artist not stated in the record · ca. 1855

Hanging Lamp
Artist not stated in the record · 10th–11th century

Bronze lamp
Artist not stated in the record · 1st–2nd century

Lamp Handle with a Griffin’s Head
Artist not stated in the record · 6th–7th century

Terracotta oil lamp
Artist not stated in the record · 1st century CE

Bronze lamp
Artist not stated in the record · late 1st century CE
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. 274 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. 262391 matched · 40 examined · 33 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.7 shown
These figures describe the pass run at 2026-08-28 08:34 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.