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 “Friedrich August Pflugfelder” — 64 records examined, 18 dropped by the rights gate.
Archives queried 2026-08-26 20:36 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 Calling of the Apostles St. James and St. John
Friedrich August Pflugfelder · 1839
Adolph Von Steinwehr
Artist not stated in the record · c. 1860-70
Two Men Contemplating the Moon
Caspar David Friedrich · ca. 1825–30
Monks in a Cloister
Artist not stated in the record · 1768-1839
Partisan of the Swiss Guard of Friedrich August of Saxony (reigned 1694–1733)
Artist not stated in the record · ca. 1725
The Devil's Bridge, near Cassel, Germany
Artist not stated in the record · 1796
At the Edge of the Forest
August Heinrich · ca. 1820
The Sham Castle, Schloss Wilhelmshöhe, near Cassel, Germany
Artist not stated in the record · 1796
Partisan of the Polish Noble Guard of Friedrich August I of Saxony, who twice ruled as king of Poland (1697–1704 and 1709–1733)
Artist not stated in the record · ca. 1720
Spirogyra condensata
Artist not stated in the record · -- May ----
Two Men before a Waterfall at Sunset
Johan Christian Dahl · 1823
Vaucheria caespitosa
Artist not stated in the record · -- --- 18--
Lost: Souvenir of Auvergne
August Friedrich Albrecht Schenck
Zygnema condensatum
Artist not stated in the record · -- May ----
Italian Garden
Friedrich August von Kaulbach · 1894
Hydrurus penicillatus
Artist not stated in the record · -- May ----
Transverse Flute
Friedrich Gabriel August Kirst · ca. 1795
Euphorbia verrucosa L.
Artist not stated in the record · 7 May 1891 to 7 Jun 1891
Imperial Jump-rope (Le Sauteur impérial, grand faiseur de tour)
Friedrich August Mottu · July 1815
Sphagnum tenellum (Brid.) Bory
Artist not stated in the record · 1886
Potpourri vase
Karl Friedrich Schinkel · ca. 1810
Succisa australis Rchb.
Artist not stated in the record
Wooded Landscape
Friedrich August Brand · mid-18th–early 19th century
Thalictrum nigricans DC.
Artist not stated in the record
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. 384 matched · 24 examined · 3 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. 22989 matched · 40 examined · 15 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 2026-08-26 20:36 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.