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. 23 shown for “1c Franklin and 2c Andrew Jackson War Department combination cover” — 64 records examined, 5 dropped by the rights gate.
Archives queried 2026-09-01 01:19 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Antoine Laurent Lavoisier (1743–1794) and Marie Anne Lavoisier (Marie Anne Pierrette Paulze, 1758–1836)
Jacques Louis David · 1788
1c Franklin and 2c Andrew Jackson War Department combination cover
Artist not stated in the record · December 6, 1878
Winchester Model 1886 Takedown Rifle decorated by Tiffany & Co. (serial no. 120528)
Winchester Repeating Arms Company · 1899–1900
1c Franklin and 2c Jackson on cover
Artist not stated in the record · 1863-1867
The Birth of the Virgin
Fra Carnevale (Bartolomeo di Giovanni Corradini) · 1467
2c Andrew Jackson plate proof single
Artist not stated in the record · 1873
The Death of Socrates
Jacques Louis David · 1787
Confederate 2c Andrew Jackson on semi-official imprinted envelope
Artist not stated in the record · 1861-1865
Marcantonio Pasqualini (1614–1691) Crowned by Apollo
Andrea Sacchi · 1641
2c Andrew Jackson War Department single
Artist not stated in the record · 1879
Virgin and Child with Four Angels
Gerard David · ca. 1510–15
2c Andrew Jackson plate proof single
Artist not stated in the record · 1873
Pair-case quarter-repeating watch
John Champion · ca. 1770–72
The Forest in Winter at Sunset
Théodore Rousseau · ca. 1846–67
2c Andrew Jackson War Department block of four
American Bank Note Company · 1879
Mars and Venus United by Love
Paolo Veronese (Paolo Caliari) · 1570s
2c Andrew Jackson War Department single
Artist not stated in the record · 1873
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
2c Andrew Jackson War Department card plate proof
Artist not stated in the record · 1879-1894
Ewer with a Feline-Shaped Handle
Artist not stated in the record · 7th century
1c Franklin plate proof single
Artist not stated in the record · 1873
Serpent labret with articulated tongue
Mexica artist(s) · 1325–1521 CE
2c Andrew Jackson pair on transatlantic cover
Artist not stated in the record · June 18, 1875
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. 42 matched · 24 examined · 5 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. 1572072 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 01:19 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.