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. 23 shown for “Théodore Bertren, active in France, 18th century” — 64 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-02 15:49 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Belles Heures of Jean de France, duc de Berry
The Limbourg Brothers · 1405–1408/1409
Ornamental Medallion Designs
P. J. Bertren, active 18th century · 1768
Andiron with figure of Jupiter (chenet) (one of a pair)
Alessandro Algardi · late 17th century
Ornamental Medallion Designs
P. J. Bertren, active 18th century · 1768
Ornamental Medallion Designs
P. J. Bertren, active 18th century · 1768
The Forest in Winter at Sunset
Théodore Rousseau · ca. 1846–67
Ornamental Medallion Designs
P. J. Bertren, active 18th century · 1768
Virgin and Child
Claus de Werve · ca. 1415–19
Ornamental Medallion Designs
P. J. Bertren, active 18th century · 1768
The Feast of Herod and the Beheading of the Baptist
Giovanni Baronzio · ca. 1330–35
Ornamental Medallion Designs
P. J. Bertren, active 18th century · 1768
Rapier of Ambrogio Spinola (1569–1630) with Scabbard Chape
M. I. F. · ca. 1600
Album of Prints: Vases, Medallions, and Trophies Designed by T. Bertren
Théodore Bertren, active in France, 18th century · 1765-1772
Margaret of Austria
Jean Hey (called Master of Moulins) · ca. 1490
Ornamental Trophy Designs
Théodore Bertren, active in France, 18th century · 1771
Portrait of a Young Man
Hans Memling · ca. 1472–75
Ornamental Trophy Designs
Théodore Bertren, active in France, 18th century · 1771
Mémoire sur un rouet a filer des deux mains a la fois
Clousier · 1777
Medallion or Frame Design
Théodore Bertren, active in France, 18th century · ca. 1771
The Last Supper
Ugolino da Siena (Ugolino di Nerio) · ca. 1325
Medallion or Frame Design
Théodore Bertren, active in France, 18th century · ca. 1771
Moses and Aaron before Pharaoh: An Allegory of the Dinteville Family
Master of the Dinteville Allegory · 1537
Medallion or Frame Design
Théodore Bertren, active in France, 18th century · ca. 1771
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. 906 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. 7462033 matched · 40 examined · 0 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 15:49 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.