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. 16 shown for “Gard Mobile folded letter from Paris office at Rue St. Lazare” — 47 records examined, 12 dropped by the rights gate.
Archives queried 2026-09-02 13:28 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Mantel clock with musical movement
Jean-Baptiste-André Furet · ca. 1784
Gard Mobile folded letter from Paris office at Rue St. Lazare
Artist not stated in the record · September 22, 1870
Young Lady in 1866
Edouard Manet · 1866
Transatlantic Cover to North Orange, New Jersey
Artist not stated in the record · 1872
The Dancing Class
Edgar Degas · ca. 1870
Folded letter from Paris office at Rue d' Amsterdam
Artist not stated in the record · January 10, 1871
The Spanish Singer
Edouard Manet · 1860
Gazette des Absents Newspaper from Paris office at Rue de Clery
Artist not stated in the record · December 15, 1870
Transatlantic cover Paris, France
Artist not stated in the record · July 10, 1857
Transatlantic Cover to Boston
Artist not stated in the record · 1867
Transatlantic Cover
Artist not stated in the record · 1841
Transatlantic cover to Birmingham, England
Artist not stated in the record · December 8, 1849
Odeon Theater, Paris
Artist not stated in the record · 1820
Elevation Geometralle de la Fontaine des Sts. Innocents. Erigée dans la rue St. Denis a Paris.
Artist not stated in the record · mid- 18th century
Transatlantic Cover to New York
Artist not stated in the record · 1869
Jardin de la Maison de Mr de St. Poange ruë des petits Champs, de l’invention de Monsr. Le Nautre
Nicolas Langlois, French, 1640 - 1703 · late 17th century
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. 7 matched · 7 examined · 3 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.4 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 883330 matched · 40 examined · 9 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 2026-09-02 13:28 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.