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 “Post Office Act of 1790” — 64 records examined, 2 dropped by the rights gate.
Archives queried 2026-09-04 01:33 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Presentation Smallsword with Scabbard
James Morisset · hallmarked for 1797–98
Post Office Act of 1790
Artist not stated in the record · Jauary 4, 1790
Mantel clock with musical movement
Jean-Baptiste-André Furet · ca. 1784
Post Office Act of 1791
Artist not stated in the record · March 3, 1791
The Post Office
Thomas Rowlandson · 1813
The Baltimore Daily Intelligencer newspaper
Artist not stated in the record · May 29, 1794
Smallsword
Artist not stated in the record · possibly 1790
Post Office Act of 1792 publication
Artist not stated in the record · 1792
The Annunciation
Gerard David · 1506
Franklin and Foxcroft rate chart
Artist not stated in the record · 1765
Saint Lawrence Enthroned with Saints and Donors
Fra Filippo Lippi · 1440s
The Baltimore Daily Intelligencer newspaper
Artist not stated in the record · May 31, 1794
Madonna and Child Enthroned with Saints
Raphael (Raffaello Sanzio or Santi) · ca. 1504
The Baltimore Daily Intelligencer newspaper
Artist not stated in the record · June 5, 1794
Antoine Laurent Lavoisier (1743–1794) and Marie Anne Lavoisier (Marie Anne Pierrette Paulze, 1758–1836)
Jacques Louis David · 1788
The American Apollo magazine
Artist not stated in the record · March 16, 1792
The Death of Socrates
Jacques Louis David · 1787
Letter to Schuyler Colfax from Post Office Department
Artist not stated in the record · 1865
Sulking
Edgar Degas · ca. 1870
General Post Office report
Artist not stated in the record · January 20, 1790
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
The American Apollo magazine
Artist not stated in the record · March 9, 1792
The Government House, New York
Charles Currier · 1850–65
Post Office Act of 1794 publication
Artist not stated in the record · 1794
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. 25 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. 2872219 matched · 40 examined · 2 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 2026-09-04 01:33 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.