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 “12c Henry Clay card plate proof” — 64 records examined, 4 dropped by the rights gate.
Archives queried 2026-08-31 23:17 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Peace
Dihl et Guérhard · ca. 1781–89
12c Henry Clay card plate proof
Artist not stated in the record · 1893
The Organ Rehearsal
Henry Lerolle · 1885
12c Henry Clay Justice Department card plate proof
Artist not stated in the record · 1879-1894
Washstand (athénienne or lavabo)
Charles Percier · 1800–1814
12c Henry Clay War Department card plate proof
Artist not stated in the record · 1879-1894
The Card Players
Paul Cézanne · 1890–92
12c Henry Clay Treasury Department card plate proof
Artist not stated in the record · 1879-1894
Left Gauntlet of Henry (1594–1612), Prince of Wales
Jacob Halder · ca. 1608
12c Henry Clay State Department card plate proof
Artist not stated in the record · 1879-1894
Somerindyck House, from "Scenes of Old New York"
Henry Farrer · 1870
12c Henry Clay Navy Department card plate proof
Artist not stated in the record · 1879-1894
Vessel with mythological scene
Metropolitan Painter · 600–800 CE
12c Henry Clay Interior Department card plate proof
Artist not stated in the record · 1879-1894
Palisades (No. 19 of The Hudson River Portfolio)
John Hill · 1823–24
12c Henry Clay Agriculture Department card plate proof
Artist not stated in the record · 1879-1894
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
12c Henry Clay Justice Department card plate proof
Artist not stated in the record · 1893
Trade card for Henry Hardy, Printer
Anonymous, British, 19th century · 19th century
12c Henry Clay Agriculture Department card plate proof
Artist not stated in the record · 1893
Pair of Four-Barreled Turnover Percussion Pistols of Henry Pelham Fiennes Pelham-Clinton, 4th Duke of Newcastle-under-Lyne (1785–1851), with Pair of Box-Lock Turn-Off Pocket Pistols, Case, and Accessories
James Purdey the Elder · 1831
12c Henry Clay Navy Department card plate proof
Artist not stated in the record · 1893
Henry Clay, from the series Great Americans (N76) for Duke brand cigarettes
W. Duke, Sons & Co. · 1888
12c Henry Clay Interior Department card plate proof
Artist not stated in the record · 1893
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. 36 matched · 24 examined · 4 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. 636362 matched · 40 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 2026-08-31 23:17 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.