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 “John C. Calhoun” — 64 records examined, 15 dropped by the rights gate.
Archives queried 2026-09-03 17:44 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
John C. Calhoun
Savinien Edme Dubourjal · 1846
Bust of John C. Calhoun
Clark Mills, born near Syracuse, NY 1810-died Washington, DC 1883 · 1850
The Gallery of Illustrious Americans, Containing the Portraits and Biographical Sketches of Twenty-four of the Most Eminent Citizens of the American Republic Since the Death of Washington
Brady, D'Avignon and Company · 1850
1c John C. Calhoun CSA single
Thomas De La Rue & Co., Ltd. · c. 1862
Saint John on Patmos
Hans Baldung (called Hans Baldung Grien) · ca. 1511
John C. Calhoun
Clark Mills, born near Syracuse, NY 1810-died Washington, DC 1883 · ca. 1844-1845
Plaque with Saint John the Evangelist
Artist not stated in the record · early 9th century
1c John C. Calhoun single
Artist not stated in the record · 1862
The Crucifixion with the Virgin and Saint John
Hendrick ter Brugghen · ca. 1624–25
1c John C. Calhoun block of four
Thomas De La Rue & Co., Ltd. · 1862
Tapestry with Armorial Bearings and Badges of John, Lord Dynham
Artist not stated in the record · ca. 1488–1501
John C. Calhoun free frank cover
Artist not stated in the record · c. 1842-1852
Congressional Presentation Sword and Scabbard of Major General John E. Wool (1784–1869)
Samuel Jackson · 1854–55
John C. Calhoun
George Peter Alexander Healy, 15 Jul 1813 - 24 Jun 1894 · c. 1845
Reliquary monstrance of St. John the Baptist
C. C. · ca. 1640, with 18th century additions
Biography of John C. Calhoun
Artist not stated in the record · published 1850
Altarpiece with Christ, Saint John the Baptist, and Saint Margaret
Andrea da Giona · 1434
John C. Calhoun
Unidentified Artist · c. 1855 (after c. 1845 daguerreotype)
Tall Clock
Thomas Seymour · 1805–10
John C. Calhoun
Francis D'Avignon, 29 Oct 1813 - c. 1871 · 1850
St. John the Evangelist
Capodimonte Porcelain Manufactory · ca. 1744
John C. Calhoun
Miner Kilbourne Kellogg, 1814 - 1889 · 1848
Teapot
John Bartlam · ca. 1765–69
John C. Calhoun
E. B. & E. C. Kellogg Lithography Company, active c. 1842 - 1867 · 1844
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. 8225 matched · 24 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. 1226261 matched · 40 examined · 11 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 2026-09-03 17:44 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.