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 “Alexander Hamilton free frank cover to Customs Collector Stephen Smith” — 57 records examined, 6 dropped by the rights gate.
Archives queried 2026-09-08 12:32 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
Alexander Hamilton free frank cover to Customs Collector Stephen Smith
Artist not stated in the record · October 22, 1789
The Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38
Alexander Hamilton free frank cover to Customs Collector Joseph Hiller
Artist not stated in the record · October 22, 1789
Juan de Pareja (ca. 1608–1670)
Velázquez (Diego Rodríguez de Silva y Velázquez) · 1650
Alexander Hamilton free frank cover to Customs Collector Otho H. Williams
Artist not stated in the record · August 13, 1793
The Rest on the Flight into Egypt
Gerard David · ca. 1512–15
World War II Patriotic cover
Artist not stated in the record · December 1943
Aristotle with a Bust of Homer
Rembrandt (Rembrandt van Rijn) · 1653
Free Frank cover
Artist not stated in the record · June 10
Boy with a Sword
Edouard Manet · 1861
Alexander Hamilton Stephens
Unidentified Artist · c. 1861-65 (after earlier photograph)
Whalers
Joseph Mallord William Turner · ca. 1845
Alexander Hamilton Stephens
Unidentified Artist · c. 1861-62
Boating
Edouard Manet · 1874
Alexander Hamilton Stephens
Mathew Brady Studio, active 1844 - 1894 · c. 1860
The Horse Fair
Rosa Bonheur · 1852–55
Alexander Stephens
John Francis Eugene Prud'homme, 4 Oct 1800 - 28 Jun 1892 · 1865
Mademoiselle V. . . in the Costume of an Espada
Edouard Manet · 1862
Congress Free cover
Artist not stated in the record · February 25, 1973
The Vision of Saint John
El Greco (Domenikos Theotokopoulos) · ca. 1608–14
Alexander Hamilton Stephens
J. L. Giles, active c. 1861 - 1881 · c. 1868
1807, Friedland
Ernest Meissonier · ca. 1861–75
Alexander Hamilton Stephens
Frederich Graetz, c. 1840 - c. 1913 · 1882
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. 17 matched · 17 examined · 4 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. 6341081 matched · 40 examined · 2 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 12:32 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.