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 “Lange de Bourbon” — 24 records examined, 1 dropped by the rights gate.
Archives queried 2026-08-28 16:11 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.
Wall barometer-thermometer
Lange de Bourbon · ca. 1760
Wall clock-barometer (baromètre et thermomètre en cartel)
Lange de Bourbon · ca. 1770
Shopfront from 3, quai de Bourbon, Île Saint-Louis, Paris
Etienne Séjournant · between 1775–77, with later replacements
Armor of Giovanni Battista Bourbon del Monte (1541–1614)
Artist not stated in the record · ca. 1590
Glaive of the Bodyguard of Giovanni Battista Bourbon del Monte (1541–1614)
Artist not stated in the record · ca. 1590–1600
Charles Maurice de Talleyrand Périgord (1754–1838), Prince de Talleyrand
Pierre Paul Prud'hon · 1817
Glaive of the Bodyguard of Giovanni Battista Bourbon del Monte (1541–1614)
Artist not stated in the record · ca. 1590–1600
Chapter House from Notre-Dame-de-Pontaut
Artist not stated in the record · 12th century
Charles Maurice de Talleyrand Périgord (1754–1838), Prince de Bénévent
baron François Gérard · 1808
Transverse Flute in D-flat
Claude Laurent · 1813
Still Life with a Vase of Flowers, Melon, Peaches, and Grapes
Charlotte Eustache Sophie de Fuligny Damas, marquise de Grollier · 1780
Children and satyr children stealing the cubs of a pantheress (part of a group)
Clodion (Claude Michel) · ca. 1781
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. 407 matched · 24 examined · 1 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-28 16:11 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.