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 “Walter George Mason” — 64 records examined, 29 dropped by the rights gate.
Archives queried 2026-08-30 12:57 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Sebastian Gomez Discovered by His Master Murillo, At Work, from "Illustrated London News"
Walter George Mason · April 29, 1848
Vicia caroliniana Walter
Artist not stated in the record
George Moore (1852–1933)
Edouard Manet · 1879
Triplasis purpurea (Walter) Chapm.
Artist not stated in the record · 30 Sep 1941
Captain George K. H. Coussmaker (1759–1801)
Sir Joshua Reynolds · 1782
Triplasis purpurea (Walter) Chapm.
Artist not stated in the record · 30 Sep 1941
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
Persicaria hirsuta (Walter) Small
Artist not stated in the record · 20 May 1964
The Three Bears
Harrison William Weir · 1851
Sium suave Walter
Artist not stated in the record · 4 Aug 1940
Study for "A Sunday on La Grande Jatte"
Georges Seurat · 1884
Agrostis perennans (Walter) Tuck.
Artist not stated in the record · 28 Aug 1944
Madame Georges Charpentier (Marguerite-Louise Lemonnier, 1848–1904) and Her Children, Georgette-Berthe (1872–1945) and Paul-Emile-Charles (1875–1895)
Auguste Renoir · 1878
Alopecurus carolinianus Walter
Artist not stated in the record · 13 May 1961
Masonic Armchair
Artist not stated in the record · 1775–90
Magnolia fraseri Walter
Artist not stated in the record · 1 Sep 1882
![[Merchants' Carnival Portrait: Wielands Laundry, Marshfield, Wisconsin], by Walter Mason](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP-43423-361.jpg&w=3840&q=75)
[Merchants' Carnival Portrait: Wielands Laundry, Marshfield, Wisconsin]
Walter Mason · 1880s–1890s
Utricularia purpurea Walter
Artist not stated in the record · 1 Aug 1910
Medallion with Saint George from an Icon Frame
Artist not stated in the record · ca. 1100
Utricularia inflata Walter
Artist not stated in the record · 20 May 1964
Saint George and the Dragon
Hans Klocker · ca. 1475
Eupatorium pilosum Walter
Artist not stated in the record · 27 Oct 2002
The Third-Class Carriage
Honoré Daumier · 1864
Agrostis perennans (Walter) Tuck.
Artist not stated in the record · 24 Oct 1967
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. 1506 matched · 24 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. 320203 matched · 40 examined · 26 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 2026-08-30 12:57 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.