Two 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. 15 shown for “Nevil Story Maskelyne” — 44 records examined, 29 dropped by the rights gate.
Archives queried 2026-08-28 07:39 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.![[Chicken Feathers], by Nevil Story Maskelyne](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP167354.jpg&w=3840&q=75)
[Chicken Feathers]
Nevil Story Maskelyne · ca. 1840

Neville Chamberlain
Samuel Johnson Woolf, 12 Feb 1880 - 3 Dec 1948 · 1932

Sultan
Nevil Story Maskelyne · mid-1850s

Wendell Cushing Neville
Samuel Johnson Woolf, 12 Feb 1880 - 3 Dec 1948 · 1929

The Old Gamekeeper
David Kinnebrook · ca. 1844

Neville Chamberlain
Samuel Johnson Woolf, 12 Feb 1880 - 3 Dec 1948 · 1938

Sardonyx cameo portrait of the Emperor Augustus
Artist not stated in the record · ca. 41–54 CE

Polygala vulgaris L.
Artist not stated in the record · Transcribed d/m/y: 13/6/66

Cochlearia oblongifolia DC.
Artist not stated in the record · Transcribed d/m/y: 13/6/86

Arabis arenosa (L.) Scop.
Artist not stated in the record · 1865

Scilla verna Huds.
Artist not stated in the record

Galium boreale L.
Artist not stated in the record · Aug 1863

Gnaphalium supinum L.
Artist not stated in the record · Aug 1868

Silene dioica (L.) Clairv. subsp. dioica
Artist not stated in the record · Transcribed d/m/y: 16/5/66

Lamium galeobdolon (L.) L.
Artist not stated in the record · 21 May 1866
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. 4 matched · 4 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.4 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 5611 matched · 40 examined · 29 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.11 shown
These figures describe the pass run at 2026-08-28 07:39 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.