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. 24 shown for “Armet with Mask Visor” — 61 records examined, 24 dropped by the rights gate.
Archives queried 2026-08-31 16:12 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Armet with Mask Visor in the Form of a Rooster
Artist not stated in the record · ca. 1530

Flight helmet used by Colonel James E. Randall
Artist not stated in the record · ca. 1965

Armet
LIONARDO · ca. 1440

Flight helmet worn by Thunderbird pilot Gen. Lloyd W. Newton
Artist not stated in the record · ca. 1974

Armet with Mask Visor
Artist not stated in the record · ca. 1520–25

Design for a Decorative Burgonet
Artist not stated in the record · early 17th century

Armet
Missaglia workshop · ca. 1460

Design for a Decorative Burgonet
Artist not stated in the record · early 17th century

Armet
Artist not stated in the record · ca. 1490

Director's visor worn by Melvin Van Peebles
The American Express Company, American, founded 1850 · Mid to late 20th century

Armet
Artist not stated in the record · ca. 1490, with later additions

Green cap with veil and feathers
Artist not stated in the record · 1950s

Armet
Artist not stated in the record · ca. 1510–15

Uniform cap owned by Pullman Porter Robert Thomas
Artist not stated in the record · ca. 1920

Armet
Artist not stated in the record · ca. 1520

Uniform cap worn by a Pullman porter
Artist not stated in the record · 1950s - 1960s

Mask Visor in Form of a Human Face
Kolman Helmschmid · ca. 1515

French Adrian Helmet
Unidentified · 1915-1926

Visored Bascinet
Artist not stated in the record · ca. 1425–50

Blue faux fur cap
Unidentified · 1970s

Armet with Wrapper
Artist not stated in the record · armet, ca. 1460–70; wrapper, ca. 1450; rondel, probably 18th–19th century
Andrachne telephioides L.
Artist not stated in the record · 21 Mar 1982

Half Armor
Kolman Helmschmid · ca. 1510–20 and later
Aeluropus lagopoides (L.) Trin. ex Thwaites
Artist not stated in the record · 4 May 1981
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. 21 matched · 21 examined · 0 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. 252083 matched · 40 examined · 24 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 2026-08-31 16:12 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.