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. 21 shown for “Wessmann, Charles B.” — 64 records examined, 36 dropped by the rights gate.
Archives queried 2026-09-10 16:12 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Clarinet in B-flat
Charles Joseph Sax · 1830
Wessmann Game Counter, U.S. Patent Office Model
Wessmann, Charles B. · 1878
Tomb Effigy Bust of Marie de France (1327-41), daughter of Charles IV of France and Jeanne d'Evreux
Jean de Liège · ca. 1381
Telegraph Key
Wessmann, Martin F. · 1873
Charles Maurice de Talleyrand Périgord (1754–1838), Prince de Talleyrand
Pierre Paul Prud'hon · 1817
Charles Thomson
B. B. Ellis · 1783
Charles Maurice de Talleyrand Périgord (1754–1838), Prince de Bénévent
baron François Gérard · 1808
Charles B. Wells
Barr & Young, active 1860s · n.d.a.
Chocolate Pot
Tiffany & Co. · 1879
John Charles Fremont
Mathew B. Brady, 1823? - 15 Jan 1896 · c. 1856
Madame Georges Charpentier (Marguerite-Louise Lemonnier, 1848–1904) and Her Children, Georgette-Berthe (1872–1945) and Paul-Emile-Charles (1875–1895)
Auguste Renoir · 1878
Charles II
R. B. · n.d.a.
Madame Charles Maurice de Talleyrand Périgord (1761–1835)
baron François Gérard · ca. 1804
Charles Chauncey
Auguste Edouart, 1788 - 1861 · 1843
Charles Claude de Flahaut (1730–1809), Comte d'Angiviller
Jean-Baptiste Greuze · 1763
Charles West Thomson
Auguste Edouart, 1788 - 1861 · 1842
Pier table
Charles-Honoré Lannuier · 1815–19
Dr. Charles Caldwell
Auguste Edouart, 1788 - 1861 · 1844
The Rebuke of Adam and Eve
Charles Joseph Natoire · 1740
Apple Blossoms
Charles-François Daubigny · 1873
Head of Ptolemy II or III
Artist not stated in the record · 246–222 BCE
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. 5383 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. 608774 matched · 40 examined · 31 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.9 shown
These figures describe the pass run at 2026-09-10 16:12 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.