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 “Siege of Paris preprinted letter sheet” — 64 records examined, 2 dropped by the rights gate.
Archives queried 2026-08-29 17:50 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 Composer André-Ernest-Modeste Grétry (1741–1813)
Jean-Baptiste Stouf · 1804–8
Siege of Paris preprinted letter sheet
Artist not stated in the record · c. 1870
Joan of Arc
Jules Bastien-Lepage · 1879
Siege of Paris preprinted letter sheet
Artist not stated in the record · c. 1870
Saint Tarcisius
Alexandre Falguière · ca. 1880
Siege of Paris preprinted letter sheet
Artist not stated in the record · c. 1870
Oedipus and the Sphinx
Gustave Moreau · 1864
Siege of Paris preprinted letter sheet
Artist not stated in the record · c. 1870
The Burghers of Calais
Auguste Rodin · modeled 1884–95, cast 1985
Siege of Paris preprinted letter sheet
Artist not stated in the record · c. 1870
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
Siege of Paris preprinted letter sheet
Artist not stated in the record · c. 1870
Boating
Edouard Manet · 1874
Gazette des Absents Newspaper from Paris office at Rue de Clery
Artist not stated in the record · December 15, 1870
Boy with a Sword
Edouard Manet · 1861
Folded letter from Paris office at Rue d' Amsterdam
Artist not stated in the record · January 10, 1871
The Abduction of Rebecca
Eugène Delacroix · 1846
V-Mail Letter Sheet
Artist not stated in the record · 1943
Leaf of a Writing Tablet
Artist not stated in the record · 14th century
V-Mail Letter Sheet
Artist not stated in the record · 1939-1945
The Organ Rehearsal
Henry Lerolle · 1885
Envelope from Paris office at Place de la Madeleine
Artist not stated in the record · November 24, 1870
The Spanish Singer
Edouard Manet · 1860
Pigeon post microform on paper
Artist not stated in the record · 1870
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. 2004 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. 2870295 matched · 40 examined · 0 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 2026-08-29 17:50 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.