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. 24 shown for “Thomas Roberts” — 64 records examined, 8 dropped by the rights gate.
Archives queried 2026-08-28 02:10 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Upholstered armchair, originally from a set of eight, from Burley-on-the-Hill, Rutland (one of a pair)
Thomas Roberts · ca. 1689

The Wine Glass
James McNeill Whistler (1834-1903) · 1858

The Harvest, Pontoise (La Récolte, Pontoise)
Camille Pissarro · 1881

Rag Pickers, Quartier Mouffetard, Paris
James McNeill Whistler (1834-1903) · 1858

Haystacks, Morning, Eragny
Camille Pissarro · 1899

Chelsea
James McNeill Whistler (1834-1903) · 1879

The Boulevard Montmartre on a Winter Morning
Camille Pissarro · 1897

Quiet Canal
James McNeill Whistler (1834-1903) · 1879-1880

The Garden of the Tuileries on a Spring Morning
Camille Pissarro · 1899

Old Battersea Bridge, No. 2
James McNeill Whistler (1834-1903) · 1878-1879

Jalais Hill, Pontoise
Camille Pissarro · 1867

The Blue Girl
James McNeill Whistler (1834-1903) · 1873-1876

Dining room from Kirtlington Park
John Sanderson · 1748

The Marble Palace
James McNeill Whistler (1834-1903) · 1880

Fan Mount: The Cabbage Gatherers
Camille Pissarro · ca. 1878–79

Robert Bailey Thomas
Artist not stated in the record · 1844

Annunciation Triptych (Merode Altarpiece)
Robert Campin · ca. 1427–32

Portrait Sketch of Thomas Carlyle
James McNeill Whistler (1834-1903) · 1872

Mrs. Grace Dalrymple Elliott (1754?–1823)
Thomas Gainsborough · 1778

The Little Lagoon
James McNeill Whistler (1834-1903) · 1879-1880

Arrangement in Grey and Black: Portrait of the Artist's Mother
Thomas Robert Way · 1892

The Little Putney
James McNeill Whistler (1834-1903) · 1879

Elizabeth Farren (born about 1759, died 1829), Later Countess of Derby
Sir Thomas Lawrence · 1790

Rotherhithe
James McNeill Whistler (1834-1903) · 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. 1265 matched · 24 examined · 6 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. 265400 matched · 40 examined · 2 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 02:10 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.