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 “Metal bottle opener carried by Robert Thomas” — 64 records examined, 26 dropped by the rights gate.
Archives queried 2026-08-31 20:04 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Rolltop desk
David Roentgen · ca. 1776–79

Metal bottle opener carried by Robert Thomas
Artist not stated in the record · ca. 1920

Triptych with the Mandylion
The Kremlin Armory Workshops, Moscow · 1637

Key tool carried by Pullman Porter Robert Thomas
Artist not stated in the record · ca. 1920

The Belles Heures of Jean de France, duc de Berry
The Limbourg Brothers · 1405–1408/1409

Shoehorn carried by Pullman Porter Robert Thomas
Artist not stated in the record · ca. 1920

Longcase clock with calendar
Joseph Knibb · ca. 1680–85

Uniform coat owned by Pullman Porter Robert Thomas
Artist not stated in the record · ca. 1920

The Annunciation
Hans Memling · 1480–89

Uniform cap owned by Pullman Porter Robert Thomas
Artist not stated in the record · ca. 1920

The Annunciation
Hans Memling · ca. 1465–70

Uniform pants owned by Pullman Porter Robert Thomas
Artist not stated in the record · ca. 1920

Madonna and Child with the Donor, Pietro de' Lardi, Presented by Saint Nicholas
Master G.Z. (possibly Michele dai Carri, Italian, Ferrara, active by 1405–died 1441 Ferrara) · ca. 1420–30

The Garden of the Tuileries on a Spring Morning
Camille Pissarro · 1899

Kit, Medical, Douglas World Cruiser, Lt. Lowell Smith (REPLICA)
Artist not stated in the record · c. 1924

Jalais Hill, Pontoise
Camille Pissarro · 1867

Scent Bottle
Unidentified · 1760-1780

The Penitence of Saint Jerome
Joachim Patinir · ca. 1515

Scent Bottle
Unidentified · 1750-1800

Portrait of a Carthusian
Petrus Christus · 1446

Scent Bottle
Unidentified · 1750-1800

Annunciation Triptych (Merode Altarpiece)
Robert Campin · ca. 1427–32

Design for a Metal Candelabrum of Four Branches, for Louis XV's Service
Thomas Germain, French, 1673 – 1748 · ca. 1730
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. 247 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. 893733 matched · 40 examined · 26 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 2026-08-31 20:04 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.