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 rider receipt” — 64 records examined, 3 dropped by the rights gate.
Archives queried 2026-08-31 22:50 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Philip IV (1605–1665), King of Spain
Velázquez (Diego Rodríguez de Silva y Velázquez) · probably 1624
Post rider receipt
Artist not stated in the record · March 19, 1687
The Annunciation
Petrus Christus · ca. 1445
Military express rider receipt
Artist not stated in the record · August 26, 1794
The Kitchen of a French Post House
Thomas Rowlandson · 1803 (?)
Military express receipt
Artist not stated in the record · October 24, 1794
Race Horses
Edgar Degas · ca. 1885–88
Post Office Department patch
Artist not stated in the record · 1965-1970
Still Life with Teapot and Fruit
Paul Gauguin · 1896
Swedish post horn
Artist not stated in the record · 1800-1899
Hanging with Images of Abundance
Artist not stated in the record · 640–60 (radiocarbon dating, 95% probability)
The Post Boy newspaper
Artist not stated in the record · March 8-10, 1719/20
Antoine Laurent Lavoisier (1743–1794) and Marie Anne Lavoisier (Marie Anne Pierrette Paulze, 1758–1836)
Jacques Louis David · 1788
Patch with horse and rider emblem on a maroon field
Artist not stated in the record · 1956 - 1965
The Dance Class
Edgar Degas · 1874
Post office box rental receipt
Artist not stated in the record · October - January, 1879
Filial Affection, or a Trip to Gretna Green
Thomas Rowlandson · December 15, 1785
Letter carrier uniform jacket
Thorton Tailor · c. 1956-1965
![Racing [The Start], by Thomas Rowlandson](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fdp%2Fweb-large%2FDP872203.jpg&w=3840&q=75)
Racing [The Start]
Thomas Rowlandson · January 1, 1799
Postal employee chest badge, number 592
Artist not stated in the record · 1950s
Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares
Juan Bautista Martínez del Mazo · ca. 1636 or later
Custodial employee chest badge
Artist not stated in the record · unknown
Two Riders
Bao Shichen
Post Office clerk chest badge, number 8441
Artist not stated in the record · 1950s
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. 29 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. 16561 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 22:50 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.