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. 18 shown for “C. G. K.” — 64 records examined, 26 dropped by the rights gate.
Archives queried 2026-08-27 09:43 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Milk jug
C. G. K. · ca. 1805

Monardella villosa Benth.
Artist not stated in the record

Hot water jug
C. G. K. · ca. 1805

Button
Artist not stated in the record · 19th century

Captain George K. H. Coussmaker (1759–1801)
Sir Joshua Reynolds · 1782

Arctostaphylos nevadensis A. Gray
Artist not stated in the record · Transcribed d/m/y: /7/80

Grand Piano
Bartolomeo Cristofori · 1720

Asclepias cordifolia (Benth.) Jeps.
Artist not stated in the record · Transcribed d/m/y: /6/80

Madonna and Child with the Donor, Pietro de' Lardi, Presented by Saint Nicholas
Master G.Z. (possibly Michele dai Carri, Italian, Ferrara, active by 1405–died 1441 Ferrara) · ca. 1420–30

Phoradendron staphylinum Rizzini
Artist not stated in the record · 9 Apr 1962

Armor of Henry II, King of France (reigned 1547–59)
Jean Cousin the Elder · ca. 1555

Phoradendron filispicum Rizzini
Artist not stated in the record · 9 Apr 1962

Phoradendron perrottetii (DC.) Eichler
Artist not stated in the record · 9 Apr 1962

Phoradendron trinervium (Lam.) Griseb.
Artist not stated in the record · 9 Apr 1962

Antidaphne viscoidea Poepp. & Endl.
Artist not stated in the record · 9 Apr 1962

Anisacanthus secundus Leonard in A.C. Sm.
Artist not stated in the record · 12 Dec 1978

Siphanthera hostmannii Cogn.
Artist not stated in the record · 17 Dec 1978

Acer pseudoplatanus L.
Artist not stated in the record · 9 Sep 1909 and 28 Sep 1909
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. 12628 matched · 24 examined · 18 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.6 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1803150 matched · 40 examined · 8 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 2026-08-27 09:43 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.