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. 18 shown for “Couse of the Bodyguard of Archduke Ferdinand III of Austria (1578–1637)” — 46 records examined, 26 dropped by the rights gate.
Archives queried 2026-09-03 09:44 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Couse of the Bodyguard of Archduke Ferdinand III of Austria (1578–1637)
Artist not stated in the record · 1600–1615

Elisabeth, Empress of Austria, Queen of Diamonds from Set of "Jeu Imperial–Second Empire–Napoleon III" Playing Cards
B.P. Grimaud, Paris, France · 1858

Glaive of the Bodyguard of Archduke Ferdinand of Austria, later Emperor Ferdinand II (1578–1637)
Artist not stated in the record · 1590–1617

Franz Joseph, Emperor of Austria, King of Diamonds from Set of "Jeu Imperial–Second Empire–Napoleon III" Playing Cards
B.P. Grimaud, Paris, France · 1858

Halberd of Archduke Ferdinand II of Austria (1578–1637, Emperor from 1619)
Artist not stated in the record · dated 1598

Austria, Ace of Diamonds from Set of "Jeu Imperial–Second Empire–Napoleon III" Playing Cards
B.P. Grimaud, Paris, France · 1858

Der aller durchleuchtigisten und grosmächtigen Kayser ... Königen ... Herren vom Adel ... Bildtnussen und kurtz Beschreibungen ihrer so wol in Fridts- als Kriegszzeiten verrichten fürnembsten Thaten und Handlungen : deren Waffen und Rüstungen ... auss allen Landen der Welt ... in dem Schloss Ombrass ... zu ewiger Gedächtnuss auffbehalten werden ...
Jacob Schrenck von Nozing · 1603

Certificate of Authorization for the Title of "Von" for Johann Ferdinand Richter
Franz Mayer, Austrian, active 1700s · April 7, 1785

Glaive of the Bodyguard of Archduke Ferdinand of Austria, later Emperor Ferdinand II (1578–1637)
Artist not stated in the record · 1590–1617

Postal announcement
Artist not stated in the record · 1637

Vase
Artist not stated in the record · ca. 1550–1600 (modern foot)

Portrait of Archduke Leopold Wilhelm (1614-1662)
Artist not stated in the record · 1649

Walpi Pueblo
Eanger Irving Couse, born Saginaw, MI 1866-died Albuquerque, NM 1936 · 1903

Samuel Hahnemann
Artist not stated in the record · after 1831

Daniel Rabel, 1578–1637 · 1632

Calothrix parietina
Artist not stated in the record · 1869

Elk-Foot of the Taos Tribe
Eanger Irving Couse, born Saginaw, MI 1866-died Albuquerque, NM 1936 · 1909

Porphyrosiphon notarisii Kütz. ex Gomont
Artist not stated in the record · 13 Jul 1881
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. 6 matched · 6 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.6 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 2999785 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 2026-09-03 09:44 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.