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 “United States Express Company advertising cover send to J. Hibbler” — 64 records examined, 18 dropped by the rights gate.
Archives queried 2026-08-31 21:30 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Portrait of a Young Man
Cosmè Tura (Cosimo di Domenico di Bonaventura) · 1470s
United States Express Company advertising cover send to J. Hibbler
Artist not stated in the record · September 22
Smith & Wesson .44 Double-Action Frontier Model Revolver decorated by Tiffany & Co. (serial no. 8401), with Case and Cleaning Rod
Smith & Wesson · ca. 1893
Letter to Rachel Walters from David Walters
Artist not stated in the record · September 29, 1862
Winchester Model 1886 Takedown Rifle decorated by Tiffany & Co. (serial no. 120528)
Winchester Repeating Arms Company · 1899–1900
United States Express Company postal card
Artist not stated in the record · September 12, 1899
The Jabach Family
Charles Le Brun · ca. 1660
Letter to Rachel Walters from David Walters
Artist not stated in the record · September 29, 1862
The Death of Socrates
Jacques Louis David · 1787
1c Franklin Glastonbury, CT precancel cover
Artist not stated in the record · 1879-1880
Relief with enthroned ruler
Chakalte' · 770 CE
United States Express Company C.O.D. cover
Artist not stated in the record · April 4, 1896
Elizabeth Farren (born about 1759, died 1829), Later Countess of Derby
Sir Thomas Lawrence · 1790
Pony Express patriotic cover
Artist not stated in the record · 1861
Counterpane, Bolton type
Artist not stated in the record · ca. 1820–1835
Albany Letter Express label from 1st printing of 500
Artist not stated in the record · c. 1970
Madame Georges Charpentier (Marguerite-Louise Lemonnier, 1848–1904) and Her Children, Georgette-Berthe (1872–1945) and Paul-Emile-Charles (1875–1895)
Auguste Renoir · 1878
Albany Letter Express definitive handstamp delivered March 24, 1970
Artist not stated in the record · c. 1970
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
Albany Letter Express label from 2nd printing of 500
Artist not stated in the record · c. 1970
Benjamin Franklin (1706–1790)
Joseph Siffred Duplessis · 1778
1865 adhesive label of S.A. Taylor’s Albany Letter Express
Artist not stated in the record · c. 1970
Tommaso di Folco Portinari (1428–1501); Maria Portinari (Maria Maddalena Baroncelli, born 1456)
Hans Memling · ca. 1470
Albany Letter Express definitive handstamp of moveable rubber type
Artist not stated in the record · c. 1970
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. 33 matched · 24 examined · 8 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. 5857176 matched · 40 examined · 10 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 21:30 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.