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 “Westminster Hall, from "Ackermann's Repository"” — 40 records examined, 6 dropped by the rights gate.
Archives queried 2026-09-04 07:55 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.The Metropolitan Museum of Art: HTTP 403 from collectionapi.metmuseum.org. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.

Westminster Hall, from "Ackermann's Repository"
Artist not stated in the record · 1809

View of Westminster Hall and Bridge, from "Ackermann's Repository"
Artist not stated in the record · 1810

Westminster Abbey, from "Ackermann's Repository"
Artist not stated in the record · 1809

St. Margarets, Westminster, from "Ackermann's Repository"
Artist not stated in the record · 1809

Convent Garden Marker, from "Ackermann's Repository"
Artist not stated in the record · 1808

The Hall, Blue Coat School, from "Ackermann's Repository"
Artist not stated in the record · 1808

Egyptian Hall, Mansion House, from "Ackermann's Repository"
Artist not stated in the record · 1809

Freemason's Hall, from "Ackermann's Repository"
Artist not stated in the record · 1808

Session House, Clerkenwell, from "Ackermann's Repository"
Artist not stated in the record · 1809

The Great Hall, Bank of England, from "Ackermann's Repository"
Artist not stated in the record · 1808

Dining Hall, Asylum, from "Ackermann's Repository"
Artist not stated in the record · 1808

Heralds College, The Hall, from "Ackermann's Repository"
Artist not stated in the record · 1808
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. HTTP 403 from collectionapi.metmuseum.org. No records from this archive are shown for this query.Unavailable - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 436927 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 2026-09-04 07:55 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.