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. 12 shown for “Halberd of Archduke Ernst of Austria (1553–1605)” — 45 records examined, 33 dropped by the rights gate.
Archives queried 2026-09-03 04:01 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Halberd of Archduke Ernst of Austria (1553–1605)
Artist not stated in the record · dated 1593
A Danish Horse, from the fourth set of "Equile Joannis Austriaci"
Jan van der Straet, called Stradanus, Flemish, 1523–1605 · ca. 1575
Halberd of Archduke Ferdinand II of Austria (1578–1637, Emperor from 1619)
Artist not stated in the record · dated 1598
Portrait of Archduke Leopold Wilhelm (1614-1662)
Artist not stated in the record · 1649
The Harvesters
Pieter Bruegel the Elder · 1565
Temperance, plate 7 of "VII Virtutim...Imagines"
Jan van der Straet, called Stradanus, Flemish, 1523–1605 · ca. 1575
Armor
Artist not stated in the record · ca. 1535
Halberd
Unidentified · n.d.
Halberd
Unidentified · n.d.
Justice (Iustitia), plate 5 from the "Virtutum theologicarum et cardinalium"
Jan van der Straet, called Stradanus, Flemish, 1523–1605 · ca. 1575
St. Anne, the Virgin and the Christ Child
Jan van der Straet, called Stradanus, Flemish, 1523–1605 · ca. 1580
Design for a Cartouche Evoking the Continent of Asia
Jacques de Lajoüe, French, 1687–1761 · 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. 5 matched · 5 examined · 1 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.4 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 2878266 matched · 40 examined · 32 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.8 shown
These figures describe the pass run at 2026-09-03 04:01 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.