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 “Letter from American prisoner of war in France to Commissioner of Police, Paris” — 64 records examined, 20 dropped by the rights gate.
Archives queried 2026-09-08 10:58 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Adam
Auguste Rodin · modeled 1880 or 1881, cast 1910
Letter from American prisoner of war in France to Commissioner of Police, Paris
Artist not stated in the record · March 10, 1811
Winter
Jean Antoine Houdon · 1787
Envelope from Paris office at Place de la Madeleine
Artist not stated in the record · November 24, 1870
Young Lady in 1866
Edouard Manet · 1866
American Red Cross postcard
Artist not stated in the record · March 16, 1919
The Letter
Camille Corot · ca. 1865
Folded letter from Paris office at Rue d' Amsterdam
Artist not stated in the record · January 10, 1871
Double-Barreled Percussion Shotgun
Louis Perrin · dated 1854
Folded letter to James Monroe
Artist not stated in the record · October 19, 1794
Scenes from the Legend of Saint Vincent of Saragossa and the History of His Relics
Artist not stated in the record · ca. 1245–47
American Red Cross postcard
Artist not stated in the record · April 7, 1919
Theseus Fighting the Centaur Bianor
Antoine-Louis Barye · modeled 1849, cast ca. 1867
LA GUERRE
Clément Pierre Marillier, French, 1740 – 1808 · 1759–80
Ugolino and His Sons
Jean-Baptiste Carpeaux · 1865–67
Union prisoner of war cover
Artist not stated in the record · May 22, 1865
The Little Fourteen-Year-Old Dancer
Edgar Degas · modeled 1881, cast 1922, modern tutu
WWII German POW free mail post card
Artist not stated in the record · October 16, 1943
Congressional Presentation Sword with Scabbard of Colonel Marinus Willett (1740–1830)
C. Liger · hallmarked for 1785–86
Gazette des Absents Newspaper from Paris office at Rue de Clery
Artist not stated in the record · December 15, 1870
Joan of Arc
Jules Bastien-Lepage · 1879
LA GUERRE
Clément Pierre Marillier, French, 1740 – 1808 · 1759–80
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
American Troops Descending Avenue President Wilson
Peixotto, Ernest Clifford · ca 1918
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. 1097 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. 7484850 matched · 40 examined · 17 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 2026-09-08 10:58 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.