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 “letter from Confederate through the lines cover” — 64 records examined, 3 dropped by the rights gate.
Archives queried 2026-08-31 23:01 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Love Letter
Jean Honoré Fragonard · early 1770s
letter from Confederate through the lines cover
Artist not stated in the record · June 20, 1861
Letter
Konoe Sakihisa
Confederate through the lines cover
Artist not stated in the record · June 29, 1861
Salisbury Cathedral from the Bishop's Grounds
John Constable · ca. 1825
Confederate flag-of-truce cover
Artist not stated in the record · February 12, 1864
Book of Flower Studies
Master of Claude de France · ca. 1510–1515
Confederate blockade-run cover
Artist not stated in the record · 1861-1865
The Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38
Confederate cover
Artist not stated in the record · 1864
Triptych with the Mandylion
The Kremlin Armory Workshops, Moscow · 1637
Confederate blockade-run cover
Artist not stated in the record · 1863
Doorway from the Church of San Nicolò, San Gemini
Artist not stated in the record · carved 1000s, assembled 1100s or 1200s
Confederate cover
Artist not stated in the record · 1864
Venus and Cupid
Lorenzo Lotto · 1520s
Confederate semi-official cover
Artist not stated in the record · 1861-1865
The Unicorn Rests in a Garden (from the Unicorn Tapestries)
Artist not stated in the record · 1495–1505
Express from Richmond to Louisville posted to New York cover
Artist not stated in the record · August 8, 1861
The Siesta
Paul Gauguin · ca. 1892–94
Confederate flag-of-truce cover
Artist not stated in the record · 1864
Hermann von Wedigh III (died 1560)
Hans Holbein the Younger · 1532
Confederate flag-of-truce cover
Artist not stated in the record · 1864
The Harvesters
Pieter Bruegel the Elder · 1565
1c Franklin on Confederate cover
Artist not stated in the record · May 25, 1861
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. 1028 matched · 24 examined · 3 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. 1563134 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 23:01 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.