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 “Louis Maurer” — 64 records examined, 15 dropped by the rights gate.
Archives queried 2026-08-28 00:45 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
"Four-in-Hand"
Louis Maurer · 1861
Nathaniel Currier
Louis Maurer, 1832 - 1932 · 1858
The Rail Candidate
Louis Maurer · 1860
Great Republican Reform Party
Louis Maurer, 1832 - 1932 · 1856
The Great Exhibition of 1860
Louis Maurer · 1860
On the Shattagee
Louis Maurer, born Biebrich, Germany 1832-died New York City 1932
"The Nigger" in the Woodpile
Louis Maurer · 1860
Mac
Nathaniel Currier, born Roxbury, MA 1813-died New York City 1888 · 1853
Abraham's Dream! – "Coming Events Cast Their Shadows Before"
Louis Maurer · 1864
Rail Candidate
Louis Maurer, 1832 - 1932 · 1860
The Gun Boat Candidate, At the Battle of Malvern Hill
Louis Maurer · 1862
Stamboul
Louis Maurer, born Biebrich, Germany 1832-died New York City 1932 · ca. 1852-1884
The Chicago Platform and Candidate
Louis Maurer · 1864
Preparing for Market
Nathaniel Currier, born Roxbury, MA 1813-died New York City 1888 · 1856
"The Impending Crisis" – Or Caught in the Act
Louis Maurer · 1860
Ready for the Trot Bring up Your Horses
Louis Maurer, born Biebrich, Germany 1832-died New York City 1932 · 1877
An Heir to the Throne, Or the Next Republican Candidate
Louis Maurer · 1860
The Last Shot
Louis Maurer, born Biebrich, Germany 1832-died New York City 1932 · 1858
"The Irrepressible Conflict," or the Republican Barque in Danger
Louis Maurer · 1860
Camping Out. "Some of the Right Sort"
Louis Maurer, born Biebrich, Germany 1832-died New York City 1932 · 1855
"Uncle Sam" Making New Arrangements
Louis Maurer · 1860
Into Mischief
Currier & Ives · 1857
Letting the Cat Out of the Bag!!
Louis Maurer · 1860
Letting The Cat Out of The Bag
Louis Maurer, 1832 - 1932 · 1860
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. 37 matched · 24 examined · 4 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. 39180 matched · 40 examined · 11 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 2026-08-28 00:45 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.