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 “Curtiss JN-4H model” — 51 records examined, 0 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.
Model of a Porch and Garden
Artist not stated in the record · ca. 1981–1975 B.C.
Curtiss JN-4H model
Artist not stated in the record · 1918-1919
Model
Artist not stated in the record · 9th century
Curtiss JN-4H model
Artist not stated in the record · 1918-1919
Trotting horse
Giambologna · probably 1587–91
Photograph of airmail plane Curtiss JN-4H
Artist not stated in the record · May 15, 1918
Mill
Artist not stated in the record · 1st–early 3rd century
Curtiss JN-4D Jenny
Curtiss Aeroplane Company · 1917-1925
Allegory of the Maréchal de Villars’s Victory at Denain
Louis Simon Boizot · 1806, modified 1818
Photograph of airmail plane on take off
Artist not stated in the record · May 15, 1918
Model Sailing Boat Transporting a Mummy
Artist not stated in the record · ca. 1900–1885 B.C.
Photograph of airmail plane wreckage
Artist not stated in the record · 1918
Bacchus
Artist not stated in the record · late 17th century
Photograph of airmail pilot Eddie Gardner
Artist not stated in the record · 1918
Plaque with head of a king
Artist not stated in the record · 400–200 BCE
Photograph of airmail planes at Washington, DC
Artist not stated in the record · 1918
Crouching Venus
Giambologna · 17th century
Photograph of airmail pilot Eddie Gardner and airplane
Artist not stated in the record · 1918
Juno and the peacock
Alessandro Vittoria (Alessandro Vittoria di Vigilio della Volpa) · late 16th century
Photograph of airmail pilot Eddie Gardner
Artist not stated in the record · August 1918
Three-light wall brackets (set of four)
F. L. Feuchère père · late 18th or early 19th century
Photograph of Army pilot Lt. Torrey Webb on first day of airmail service
Artist not stated in the record · May 15, 1918
House model
Nayarit artist(s) · 200 BCE–300 CE
Photograph of airmail pilot Lt. James Edgerton and sister
Artist not stated in the record · May 18, 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. 1785 matched · 24 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. 27 matched · 27 examined · 0 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.