Two 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 to Mary Seward from John Seward” — 64 records examined, 25 dropped by the rights gate.
Archives queried 2026-09-08 12:31 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Salisbury Cathedral from the Bishop's Grounds
John Constable · ca. 1825

Letter to Mary Seward from John Seward
Artist not stated in the record · March 29, 1776

Letter
Shiba Sonome 斯波園女 · 1696

Letter to Rachel Walters from Isaac Walters
Artist not stated in the record · April 17, 1865

Saint John on Patmos
Hans Baldung (called Hans Baldung Grien) · ca. 1511

William Henry Seward
Giovanni Maria Benzoni, 1809 - 1873 · 1872

Plaque with Saint John the Evangelist
Artist not stated in the record · early 9th century

National Police Gazette, 1865
Artist not stated in the record · 1865-04-22

The Hunters Return to the Castle (from the Unicorn Tapestries)
Artist not stated in the record · 1495–1505

Dryopteris expansa (C. Presl) Fraser-Jenk. & Jermy
Artist not stated in the record · 18 Jun 2002

Saints Peter, Martha, Mary Magdalen, and Leonard
Correggio (Antonio Allegri) · ca. 1515

Captain John H. Seward
Unidentified · ca. 1790

Mrs. John Crosby Brown (Mary Elizabeth Adams, 1842–1918)
Anders Zorn · ca. 1900

Salix barclayi var. angustifolia Andersson
Artist not stated in the record · 15 Jul 1932

L'Arlésienne: Madame Joseph-Michel Ginoux (Marie Julien, 1848–1911)
Vincent van Gogh · 1888–89

Frederick W. Seward
Artist not stated in the record · c. 1860-70

Young Lady in 1866
Edouard Manet · 1866

Gymnocarpium dryopteris (L.) Newman
Artist not stated in the record · 3 Jul 2002

Scenes from the Life of Saint John the Baptist
Francesco Granacci (Francesco di Andrea di Marco) · ca. 1506–7

Albumen portrait of Fanny Seward mounted on paper
Artist not stated in the record · ca. 1860

Terracotta calyx-krater (mixing bowl)
Dolon Painter · ca. 400–390 BCE

Photograph of postcard of US mail leaving Seward for Anchorage, Alaska
Artist not stated in the record · c. 1905

Doge Alvise Mocenigo (1507–1577) Presented to the Redeemer
Jacopo Tintoretto (Jacopo Robusti) · probably 1577

Frederick W. Seward
Artist not stated in the record · c. 1860-70
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. 489 matched · 24 examined · 2 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. 1353504 matched · 40 examined · 23 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 2026-09-08 12:31 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.