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. 21 shown for “12c Henry Clay Interior Department card plate proof” — 49 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-01 01:21 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Washstand (athénienne or lavabo)
Charles Percier · 1800–1814
12c Henry Clay Interior 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 · 1893
Studies for the Libyan Sibyl (recto); Studies for the Libyan Sibyl and a small Sketch for a Seated Figure (verso)
Michelangelo Buonarroti · ca. 1510–11
12c Henry Clay plate proof single
Artist not stated in the record · 1873
Papier-mâché side chair
Artist not stated in the record · ca. 1830–60
12c Henry Clay plate proof single
Artist not stated in the record · 1873
Papier-mâché side chair
Artist not stated in the record · ca. 1830–60
12c Henry Clay Justice Department card plate proof
Artist not stated in the record · 1879-1894
Papier-mâchè side chair
Artist not stated in the record · ca. 1830–60
12c Henry Clay War Department card plate proof
Artist not stated in the record · 1879-1894
Papier-mâchè side chair
Artist not stated in the record · ca. 1830–60
12c Henry Clay Treasury Department card plate proof
Artist not stated in the record · 1879-1894
Papier-mâchè side chair
Artist not stated in the record · ca. 1830–60
12c Henry Clay State Department card plate proof
Artist not stated in the record · 1879-1894
Gondola armchair
Artist not stated in the record · ca. 1830–60
12c Henry Clay Navy Department card plate proof
Artist not stated in the record · 1879-1894
12c Henry Clay Agriculture Department card plate proof
Artist not stated in the record · 1879-1894
12c Henry Clay plate proof single
Artist not stated in the record · 1873
12c Henry Clay 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. 9 matched · 9 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.9 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 788512 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 2026-09-01 01:21 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.