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 “Franz Richard Unterberger” — 64 records examined, 23 dropped by the rights gate.
Archives queried 2026-08-28 11:21 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.![[Group of 5 Stereograph Views of Austria], by Franz Richard Unterberger](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP74745.jpg&w=3840&q=75)
[Group of 5 Stereograph Views of Austria]
Franz Richard Unterberger · 1870s–1910s
Androsace lactea L.
Artist not stated in the record
Countess Alexander Nikolaevitch Lamsdorff (Maria Ivanovna Beck, 1835–1866)
Franz Xaver Winterhalter · 1859
Erigeron glabratus Auct.
Artist not stated in the record · 22 Jul 1897
Model of King Ludwig II of Bavaria's Neo-Rococo Sleigh
Franz Seitz · 1872–80
Dicranum elongatum Schleich. ex Schwägr.
Artist not stated in the record · Transcribed d/m/y: 9/9/9
Study of a Tree
Tina Blau · 1863
Draba beckeri A. Kern.
Artist not stated in the record
The Empress Eugénie (Eugénie de Montijo, 1826–1920, Condesa de Teba)
Franz Xaver Winterhalter · 1854
Helleborus niger L.
Artist not stated in the record · 1838
Florinda
Franz Xaver Winterhalter · 1853
Oreopanax membranaceus Rusby
Artist not stated in the record · 30 Jul 2010
Ceiling Design with the Mystical Wine Press
Johann Georg Dieffenbrunner · ca. 1750
Dendropanax membranaceus J. Wen & A. Fuentes
Artist not stated in the record · 10 Aug 2010
The Soap Bubble
Gilles Demarteau · 1756–76
Erythrochiton fallax Kallunki
Artist not stated in the record · 2 Dec 1989
Gardanne
Paul Cézanne · 1885–86
Schistocarpha eupatorioides (Fenzl) Kuntze
Artist not stated in the record · 2 Dec 1989
Palmesel
Artist not stated in the record · 15th century
Physalis pubescens L.
Artist not stated in the record · 2 Dec 1989
A scallop shell chariot
William Carter · 1654
Hernandia sp.
Artist not stated in the record · 2 Dec 1989
Visit to A. Roelants
Wenceslaus Hollar · 1650
Indet. sp.
Artist not stated in the record · 2 Dec 1989
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. 127 matched · 24 examined · 5 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. 67405 matched · 40 examined · 18 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 2026-08-28 11:21 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.