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 “The Mansion House, London” — 64 records examined, 11 dropped by the rights gate.
Archives queried 2026-09-03 10:22 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Armor Garniture of George Clifford (1558–1605), Third Earl of Cumberland
Jacob Halder · 1586
The Mansion House, London
Artist not stated in the record · ca. 1745
Wine cooler (one of a pair)
William Lukin I · 1716/17
Egyptian Hall, Mansion House, from "Ackermann's Repository"
Artist not stated in the record · 1809
Hunters in a Landscape
Anonymous, 16th century · ca. 1575–95
Eagle Hotel and Mansion House, from the album Views of Charlestown,New Hampshire
Gotthelf Pach, active 1880s · 1888
Automaton in the form of a chariot pushed by a Chinese attendant and set with a clock
James Cox · 1766
Vase upon a pedestal, elevation of a mansion
Giuseppe Barberi, Italian, 1746–1809 · ca. 1800
Teakettle, lamp, and table
Simon Pantin I · 1724–25
The Two Houses of Parliament, from Harrison's History of London
John Cooke, English, acitve 18th c. · ca. 1750
Traveling clock watch with alarm
Thomas Tompion · ca. 1680
Elevation of Mansion
Whitney Warren Jr., American, 1864–1943 · ca. 1894
Mantelpiece from Chesterfield House, London
John Michael Rysbrack · 1745–50
Elevation of Mansion
Whitney Warren Jr., American, 1864–1943 · ca. 1894
Paneling from a house on the Hall Quay, Great Yarmouth, Norfolk
Artist not stated in the record · ca. 1600
Stage Design: City Street with Palaces
Artist not stated in the record · late 18th century
Settee
Sir Lawrence Alma-Tadema · ca. 1885
Houses on the Bank of the Tougnes in Trouville
Eugène Edouard Soulès, French, 1811–1876 · 1840–1860
Ewer from Burghley House, Lincolnshire
Artist not stated in the record · Chinese porcelain 1573– ca. 1585, British mounts ca. 1585
A View of Somerset House with S. Marys Church, London
Georg Balthasar Probst, German, 1732 - 1801
Trees and Houses Near the Jas de Bouffan
Paul Cézanne · 1885–86
Design for Ceiling for the Basement Story, Carlton House, Pall Mall, London, England
Henry Holland, British, 1745 - 1806 · 1786–90
Judgment of Paris
Simon Francis Ravenet, the elder · ca. 1753–56
The Guildhall
Joseph Pennell, American, active England, 1857–1926 · 1905
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. 3446 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. 1208065 matched · 40 examined · 10 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 2026-09-03 10:22 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.