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. 23 shown for “William H. Slocum” — 64 records examined, 33 dropped by the rights gate.
Archives queried 2026-09-01 13:37 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Quilt, Album pattern
Brown and Turner families · begun 1846
Letter to "L.C. Handy, Esq." from William H. Slocum
William H. Slocum · September 20, 1895
Hippopotamus ("William")
Artist not stated in the record · ca. 1961–1878 B.C.
Letter to L.C. Handy from William H. Slocum
William H. Slocum · May 2, 1895
Captain George K. H. Coussmaker (1759–1801)
Sir Joshua Reynolds · 1782
Letter addressed to "Dear Nephew" (L.C. Handy) from Mathew Brady
Mathew B. Brady, 1823? - 15 Jan 1896 · June 14, 1895
![[Group of 266 Stereograph Views of the 1855 and/or 1867 Universal Expositions in Paris, France], by M. Leon](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2F1982-1182-2499_recto.jpg&w=3840&q=75)
[Group of 266 Stereograph Views of the 1855 and/or 1867 Universal Expositions in Paris, France]
M. Leon · 1850s–1910s
Letter addressed to "Dear Nephew" (L.C. Handy) from Mathew Brady
Mathew B. Brady, 1823? - 15 Jan 1896 · April 30, 1895
Girandole
William F. Shaw · after 1852
Letter addressed to "Dear Nephew" (L.C. Handy) from Mathew Brady
Mathew B. Brady, 1823? - 15 Jan 1896 · May 13, 1895
![[Carte-de-Visite Album of Prominent Personages], by Mayer & Pierson](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP257082.jpg&w=3840&q=75)
[Carte-de-Visite Album of Prominent Personages]
Mayer & Pierson · 1860s–70s
Sherman and His Generals
Mathew Brady Studio, active 1844 - 1894 · 1865
Vase with cover (one of a pair)
I H · 1675–76
Grant and His Generals
Ole Peter Hansen Balling, 13 Apr 1823 - 1 May 1906 · 1865
Century Vase
Karl L. H. Müller · 1876
Carte-de-visite portrait of Agnes and Slocum Howland
Artist not stated in the record · ca. 1875
Wall painting from Room H of the Villa of P. Fannius Synistor at Boscoreale
Artist not stated in the record · ca. 50–40 BCE
General Henry Warner Slocum
Unidentified Artist · c. 1865
Console from the drawing room of the William H. Vanderbilt House
Herter Brothers · 1879–82
Grant and His Generals
Ole Peter Hansen Balling, 13 Apr 1823 - 1 May 1906 · c. 1865
Pedestal from the drawing room of the William H. Vanderbilt House
Herter Brothers · 1879–82
Henry W. Slocum
Unidentified Artist · c. 1850
Henry Warner Slocum
Louis Prang Lithography Company, active 1856 - 1899 · c. 1862
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. 8128 matched · 24 examined · 12 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. 1120395 matched · 40 examined · 21 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 2026-09-01 13:37 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.