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 “Design for an Engraved Tazza with a Portrait of the Duke of Alba as Commander of Folly” — 64 records examined, 9 dropped by the rights gate.
Archives queried 2026-09-02 21:30 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Table clock with calendar
Lucien Falize · 1881
Design for an Engraved Tazza with a Portrait of the Duke of Alba as Commander of Folly
Artist not stated in the record · ca. 1578
Sardonyx cameo portrait of the Emperor Augustus
Artist not stated in the record · ca. 41–54 CE
Design for a Tazza with a Portrait of William of Orange as Commander of Wisdom
Artist not stated in the record · ca. 1588
Portrait of a Woman with a Man at a Casement
Fra Filippo Lippi · ca. 1440
Design for an Engraved Tazza with the Head of a Jester and a Satyr, representing Pride and Folly
Artist not stated in the record · ca. 1588
Equestrian portrait of William, Duke of Cumberland (1721–1765)
David Morier · ca. 1751–60
Design for an Engraved Tazza with an Allegory of Charity
Artist not stated in the record · ca. 1588
The Adoration of the Shepherds
Andrea Mantegna · shortly after 1450
1c Captain John Smith plate proof
Artist not stated in the record · 1907
Hermann von Wedigh III (died 1560)
Hans Holbein the Younger · 1532
Portrait of Oppenord (Before Portrait and Lettering)
Gilles-Marie Oppenord, French, 1672–1742 · 1749-1761
James Stuart (1612–1655), Duke of Richmond and Lennox
Anthony van Dyck · ca. 1633–35
Portrait of Arthur, 3rd Duke of Bretagne (1393-1458)
Artist not stated in the record · 1710-1720
Portrait of a Young Man
Bronzino (Agnolo di Cosimo di Mariano) · 1530s
Portrait of Oppenord
Gilles-Marie Oppenord, French, 1672–1742 · 1749-1761
Erasmus of Rotterdam
Hans Holbein the Younger · ca. 1532
Portrait of William Frederick, Duke of Gloucester
Artist not stated in the record · ca. 1835
Portrait of a Woman, Possibly a Nun of San Secondo; (verso) Scene in Grisaille
Jacometto (Jacometto Veneziano) · ca. 1485–95
Three Paneling Designs
François Marie Isidore Queverdo, 1748 - 1797 · 1788
The Harvesters
Pieter Bruegel the Elder · 1565
Album of Prints: Designs for the Carriage of the Duke of Ossuna by Bernard Picart
Bernard Picart, 1673–1733 · 1714
The Toilette of Venus
François Boucher · 1751
Coupe de la Maison du jardin nommé le désert près la forêt de Marly, batie par Mr. Demonville
Jean-Charles Krafft, French, 1764 - 1833 · 1812
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. 618 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. 4016636 matched · 40 examined · 9 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 2026-09-02 21:30 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.