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 “Railway Post Office train car model” — 55 records examined, 3 dropped by the rights gate.
Archives queried 2026-08-31 21:41 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Standing Figure with Jeweled Headdress
Artist not stated in the record · 12th–early 13th century
Railway Post Office train car model
Artist not stated in the record · 1893
The Express Train
Charles Parsons · 1859
Louisville & Nashville mail car model
Artist not stated in the record · 1914-1957
Sulking
Edgar Degas · ca. 1870
Baltimore & Ohio railway mail car model
Artist not stated in the record · 1949-1956
Standing Figure with Feathered Headdress
Artist not stated in the record · 12th–early 13th century
Central Pacific Railroad mail car model
Artist not stated in the record · c. 1870-1885
Head of a Central Asian Figure in a Pointed Cap
Artist not stated in the record · 12th–early 13th century
Burlington mail car model
Artist not stated in the record · c. 1930-1970
Mantel clock with musical movement
Jean-Baptiste-André Furet · ca. 1784
New York Central railway mail car model
Artist not stated in the record · c. 1914-1968
An Egyptian Peasant Woman and Her Child
Léon Bonnat · 1869–70
Photograph of Pullman-built Railway Post Office and baggage car
Artist not stated in the record · c. 1920
Head of a Central Asian Figure
Artist not stated in the record · 12th–13th century
Photograph of wreck of the Southern Railway train
Artist not stated in the record · August 15, 1930
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
St. Louis, Missouri Owney tag
Artist not stated in the record · 1888-1897
Madame Georges Charpentier (Marguerite-Louise Lemonnier, 1848–1904) and Her Children, Georgette-Berthe (1872–1945) and Paul-Emile-Charles (1875–1895)
Auguste Renoir · 1878
Chicago & North West railroad mail car model
Artist not stated in the record · 1862-c. 1957
Boating
Edouard Manet · 1874
Mail pouch for Railway Post Office mail exchange
Artist not stated in the record · c. 1930-70
Head from a Figure with a Beaded Headdress
Artist not stated in the record · 12th–early 13th century
Santa Fe Railway mail car model
Artist not stated in the record · c. 1960s-1974
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. 15 matched · 15 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. 198860 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 2026-08-31 21:41 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.