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 “C. G. Gunther's Sons” — 64 records examined, 20 dropped by the rights gate.
Archives queried 2026-09-06 06:05 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Evening coat
C. G. Gunther's Sons · ca. 1930

Potentilla wiemanniana Günther et al.
Artist not stated in the record · Transcribed d/m/y: 25/5/93

Accessory set
C. G. Gunther's Sons · 1890–99

Clematis haenkeana C. Presl
Artist not stated in the record · Mar 1873

Evening coat
C. G. Gunther's Sons · 1914

Potentilla wiemanniana Günther et al.
Artist not stated in the record · 15 Jun 1895

Tippet
C. G. Gunther's Sons · ca. 1865

Notanthera heterophyllus G. Don
Artist not stated in the record · Feb 1920

Ferdinando de' Medici, Grand Prince of Tuscany
Giovanni Battista Foggini · ca. 1680–82

Adiantum raddianum C. Presl
Artist not stated in the record · Oct 1877

Jagdhorn in G
Jacob Schmidt · ca. 1710–20

Asplenium triphyllum C. Presl
Artist not stated in the record · Sep 1877

Landscapes after historical painters
Yun Xiang · datable to 1638 or 1650

Barbula icmadophila Schimp. ex C. Müll.
Artist not stated in the record · 1838

The Abduction of Rebecca
Eugène Delacroix · 1846

Bromelia hieronymi Mez in Mart.
Artist not stated in the record

Ọ́bà with Sacrificial Animals from the Ézọ́mọ's Ikẹ̀gòbọ̀ (Altar to the Hand)
Ìgùn Ẹ́rọ̀nwwọ̀n (brass-casting guild) artists · 19th century

Adiantum raddianum C. Presl
Artist not stated in the record · Oct 1877

Six Crossbow Bolts
Artist not stated in the record · early 16th century; 14.25.1576g, probably 17th or 18th century

Serpocaulon gilliesii (C. Chr.) A.R. Sm.
Artist not stated in the record · Feb 1880

Cittern
Joachim Tielke · ca. 1685

Asplenium sellowianum (Hieron.) C. Presl ex Hieron.
Artist not stated in the record · Oct 1877

Armchair (fauteuil à la reine) (part of a set)
Nicolas-Quinibert Foliot · ca. 1754–56

Charles Godfrey Gunther
Artist not stated in the record · c. 1860-70
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. 1075 matched · 24 examined · 10 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. 1635107 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 2026-09-06 06:05 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.