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 Second Assistant Postmaster General” — 64 records examined, 0 dropped by the rights gate.
Archives queried 2026-08-31 21:24 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 Assumption of the Virgin
Bernardo Daddi · 1337–38
Letter from Second Assistant Postmaster General
Artist not stated in the record · 1861
Madonna and Child with Saints Michael and John the Baptist; The Noli Me Tangere; The Conversion of Saint Paul
Italian (Pisan) Painter
Letter to A. H. Markland from Second Assistant PMG McCellan
Artist not stated in the record · 1864
The Arrival in Bethlehem
Master of the Brussels Calling of Saint Matthew · ca. 1540–50
Telegram
Artist not stated in the record · 1918
Scenes from the Life of Christ
Giovanni Baronzio · mid-1340s
Telegram from Praeger on September 5, 1918
Artist not stated in the record · September 5, 1918
Crucifix
Master of the Orcagnesque Misericordia · 1370–75
Letter of appointment for Benjamin Lipsner
Artist not stated in the record · July 2, 1918
The Triumph of Marius
Giovanni Battista Tiepolo · 1729
Postmaster reprimand form letter
Artist not stated in the record · 1838
La Berceuse (Woman Rocking a Cradle; Augustine-Alix Pellicot Roulin, 1851–1930)
Vincent van Gogh · 1889
Photograph of Second Assistant Postmaster General Otto Praeger
Artist not stated in the record · c. 1920
The Letter
Pietro Longhi (Pietro Falca) · 1746
Postal rates and regulations form letter
Artist not stated in the record · 1838
Going to Church
Wenceslaus Hollar · 1651
Letter from Third Assistant Postmaster General about creation of Harding stamp
Artist not stated in the record · September 14, 1923
General Étienne-Maurice Gérard (1773–1852)
Jacques Louis David · 1816
Telegram to Praeger on September 5, 1918
Artist not stated in the record · September 5, 1918
General Letellier on His Deathbed
Théodore Géricault · ca. 1818–20
Telegram to Benjamin Lipsner, September 4, 1918
Artist not stated in the record · September 4, 1918
Doge Alvise Mocenigo (1507–1577) Presented to the Redeemer
Jacopo Tintoretto (Jacopo Robusti) · probably 1577
Regulus 1 missile mail container
Artist not stated in the record · June 8, 1959
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. 465 matched · 24 examined · 0 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. 464512 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 21:24 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.