Two 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. 12 shown for “José Guadalupe Posada, Mexican, Aguascalientes, Mexico 1852-died Mexico City, Mexico 1913” — 24 records examined, 4 dropped by the rights gate.
Archives queried 2026-08-29 13:59 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.

Elegantly dressed male and female skeletons arm in arm (vignette for the feast of the dead)
José Guadalupe Posada · ca. 1894

In proof of true love, a watercarrier skeleton arguing with a woman (Posada); two skeleton angels in upper corners (Manilla)
José Guadalupe Posada · ca. 1890–96

A soldier fallen from his horse
José Guadalupe Posada · ca. 1911

Broadside with a song honoring General Zaragoza and soldiers who died during a battle on May 5, portrait of the general
José Guadalupe Posada · ca. 1900–1913

Broadside relating to Aurelio Cabellero who died from vomiting
José Guadalupe Posada · ca. 1890–1900

The horrific skeleton of the flood of Guanajuato
José Guadalupe Posada · 1905

The skeleton of the people’s editor (Antonio Vanegas Arroyo)
José Guadalupe Posada · 1902

Two men in an arena holding cocks in preparation for a fight, spectators around the perimeter
José Guadalupe Posada · ca. 1890–1910 (reprinted 1964)

Men in a tavern standing around a bar
José Guadalupe Posada · ca. 1890–1910 (reprinted 1964)

Woman praying to the Virgin of Guadalupe as her husband rages
José Guadalupe Posada · ca. 1894

Broadsheet relating to the great skeleton of the Chin-Chun-Chan
José Guadalupe Posada · 1904

Broadsheet with extravagant verses relating to a parade of animals dressed in costume and a corrido about an encounter between various animals.
José Guadalupe Posada · ca. 1895–1910
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. 547 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-29 13:59 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.