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 “Curtiss Airplane Co.” — 64 records examined, 42 dropped by the rights gate.
Archives queried 2026-09-10 20:49 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Broadway, New-York from Canal to Grand Street, West Side
Julius Bien · 1856

Flare, Drift, NC-3
Curtiss Airplane Co. · 1919

James-Jacques-Joseph Tissot (1836–1902)
Edgar Degas · ca. 1867–68

Curtiss 1A "Gulfhawk"
Curtiss Airplane Co. · ca. 1929

Young Woman with Her Hand over Her Mouth
Edgar Degas · ca. 1875

Curtiss JN-4H model
Artist not stated in the record · 1918-1919
Fokker T-2
Fokker (N. V. Nederlandsche Vliegtuigenfabriek) · 1923

Curtiss JN-4H model
Artist not stated in the record · 1918-1919

Curtiss D-III Headless Pusher
Curtiss Aeroplane and Motor Company · 1912

Baldwin Red Devil
Capt. Thomas Scott Baldwin · 1909-1913

Photograph of airmail plane Curtiss JN-4H
Artist not stated in the record · May 15, 1918

Photograph of airmail pilot Eddie Gardner
Artist not stated in the record · August 1918

Wiseman-Cooke Aircraft
Wiseman-Cooke · 1910-1912

Pilot Edward Gardner's aviation goggles
Artist not stated in the record · 1918-1919

24c Curtiss Jenny vignette plate proof
Bureau of Engraving and Printing · 1918
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. 25 matched · 24 examined · 21 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.3 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 218692 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 2026-09-10 20:49 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.