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. 12 shown for “Georg Philipp Rugendas” — 24 records examined, 2 dropped by the rights gate.
Archives queried 2026-08-28 11:02 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.

Constantine's Battle at the Milvian Bridge
Georg Philipp Rugendas · 1722

Cavalry Men at Rest
Georg Philipp Rugendas · late 17th–mid-18th century

Three Musicians and Harlequin in an Ornamental Frame
Georg Philipp Rugendas II · 1720–74

Walking-Stick Flute/Oboe
Georg Henrich Scherer · ca. 1750–57

Bowl
Meissen Manufactory · ca. 1740

St. Philipp
Martin Schongauer · 1470–1491

Appointment of Georg Ludwig (Geroge I) as general of the imperial troops on the Rhine
Philipp Heinrich Müller · 1707

Small settee (Marquise) (part of a set)
Georges Jacob · ca. 1785

Philipp Adolf von Ehrenberg, Bishop of Würzburg 1623-31
Georg Holdermann · 1623

Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88

Fire screen (écran)
Georges Jacob · ca. 1786

Watch
Nicolaus Rugendas the Elder · ca. 1620
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. 689 matched · 24 examined · 2 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 11:02 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.