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 “5c Ulysses S. Grant proof pair on stamp paper” — 64 records examined, 1 dropped by the rights gate.
Archives queried 2026-09-07 11:07 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Pair of Four-Barreled Turnover Percussion Pistols of Henry Pelham Fiennes Pelham-Clinton, 4th Duke of Newcastle-under-Lyne (1785–1851), with Pair of Box-Lock Turn-Off Pocket Pistols, Case, and Accessories
James Purdey the Elder · 1831
5c Ulysses S. Grant proof pair on stamp paper
Artist not stated in the record · 1890
Pair of Over-and-Under Tube-Lock Percussion Pistols with Case and Accessories
Durs Egg · ca. 1805–10; converted after 1818
5c Ulysses S. Grant proof vertical pair
Bureau of Engraving and Printing · 1890
Gold-inlaid Colt Model 1851 Navy Revolver (serial no. 20133), with Case and Accessories
Samuel Colt · ca. 1853
5c Grant plate proof pair
American Bank Note Company · 1890
Antoine Laurent Lavoisier (1743–1794) and Marie Anne Lavoisier (Marie Anne Pierrette Paulze, 1758–1836)
Jacques Louis David · 1788
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · January 3, 1895
The Pyramid of Gaius Cestius, from Vedute di Roma (Roman Views)
Giovanni Battista Piranesi · ca. 1756
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · April 23, 1895
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · August 17, 1894
Madonna and Child Enthroned with Saints
Raphael (Raffaello Sanzio or Santi) · ca. 1504
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · August 26, 1895
Chuspa (coca bag)
Moche artist(s) · 650-850 CE
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · January 3, 1895
"Rosette Bearing the Names and Titles of Shah Jahan", Folio from the Shah Jahan Album
Artist not stated in the record · recto: ca. 1645; verso: ca. 1630–40
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · November 4, 1896
The Meeting of Antony and Cleopatra
Giovanni Battista Tiepolo · ca. 1745–47
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · November 4, 1896
Pair of Flintlock Pistols
Henry Hadley · ca. 1765
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · April 24, 1895
Midas Washing at the Source of the Pactolus
Nicolas Poussin · ca. 1627
5c Ulysses S. Grant plate proof
Bureau of Engraving and Printing · December 5, 1896
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. 53 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. 1958141 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 2026-09-07 11:07 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.