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 “Replica of a Pony Express mochila” — 64 records examined, 7 dropped by the rights gate.
Archives queried 2026-08-31 23:17 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Lupona (royal seat)
Ngongo ya Chintu, formerly known as the "Buli Master" · ca. 1840–1870
Replica of a Pony Express mochila
Artist not stated in the record · c. 1986
Juno and the peacock
Alessandro Vittoria (Alessandro Vittoria di Vigilio della Volpa) · late 16th century
Pony Express Rider painting
Lloyd Branson, 1853 - 1925 · 1904
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
Pony Express patriotic cover
Artist not stated in the record · 1861
The Harvesters
Pieter Bruegel the Elder · 1565
4c Pony Express Rider plate proof
Bureau of Engraving and Printing · June 10, 1960
Young Man Holding a Book
Master of the View of Saint Gudula · ca. 1480
Replica of a Pony Express saddle
Artist not stated in the record · c. 1986
The Adoration of the Shepherds
El Greco (Domenikos Theotokopoulos) · ca. 1605–10
Express Cover
Artist not stated in the record · 1862
Daybed (Lit de repos or sultane) (part of a set)
Jean-Baptiste-Claude Sené · 1788
3c Pony Express plate proof
Bureau of Engraving and Printing · March 19, 1940
Marble head of a deity wearing a Dionysiac fillet
Artist not stated in the record · ca. 14–68 CE
Elymus elymoides (Raf.) Swezey
Artist not stated in the record · 28 Jun 2016
The Death of Socrates
Jacques Louis David · 1787
3c Pony Express plate proof
Bureau of Engraving and Printing · March 14, 1940
Virgin and Child
Dieric Bouts · ca. 1455–60
Caulanthus crassicaulis S. Watson
Artist not stated in the record · 9 Sep 2011
The Immaculate Conception
Guido Reni · 1627
3c Pony Express die proof attached to plate proof
Bureau of Engraving and Printing · March 20, 1940
The Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38
Penstemon pachyphyllus A. Gray ex Rydb.
Artist not stated in the record · 10 Aug 2011
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. 97 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. 3852179 matched · 40 examined · 6 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 23:17 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.