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 “Letter of Acknowledgment” — 64 records examined, 30 dropped by the rights gate.
Archives queried 2026-09-01 01:04 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Letter
Jiao Hong
Letter of Acknowledgment
Artist not stated in the record · 1921
Heqanakht Letter I
Artist not stated in the record · ca. 1961–1917 B.C.
Letter to John Sanborn from John Davenport
Artist not stated in the record · 1864
The Letter
Camille Corot · ca. 1865
Letter written to Nathan Kelsey Hall
Artist not stated in the record · December 9, 1850
Letter
Sir Edwin Henry Landseer · 1837
Letter
Artist not stated in the record · August 27, 1848
Letter
Shiba Sonome 斯波園女 · 1696
Letter
Artist not stated in the record · March 18, 1848
Letter
Shōkadō Shōjō · early 17th century
Letter from President Benjamin Harrison
Artist not stated in the record · October 28, 1891
Letter
Song Jue · early 17th century
Transatlantic cover to Florence, Italy
Artist not stated in the record · December 17, 1863
Letter
Wang Ao · late 15th or early 16th century
Advertisement for Kodak V-Mail
Artist not stated in the record · c. 1942
Letter
Tanomura Chokunyū 田能村直入 · mid- to late 19th century
Letter from Jack Fogarty to Mary MacDonald
Artist not stated in the record · October 27, 1945
Letter
Wang Zhideng
Color
Artist not stated in the record · 1925
Letter
Wang Duo
Bill of sale for a woman, Laurett, and her daughter, Anne
S. E. Lafar, American · 1845
Letter
Song Jue · early 17th century
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. 13274 matched · 24 examined · 1 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. 2858919 matched · 40 examined · 29 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.11 shown
These figures describe the pass run at 2026-09-01 01:04 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.