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 “Perth Group” — 57 records examined, 24 dropped by the rights gate.
Archives queried 2026-09-02 20:40 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Terracotta pelike (jar)
Perth Group · ca. 350–300 BCE
Portrait of Frèedrich Christoph Perthes
Artist not stated in the record · ca. 1840–1850
Hydria
Perth Group · ca. 350–320 BCE
Bombus (Pyrobombus) jonellus
Artist not stated in the record · 27 Sep 1933
Newhaven Group
Hill and Adamson · 1843–47
Bombus sp.
Artist not stated in the record · 2 Jun 1947
Newhaven Group
Hill and Adamson · 1843–47
Chara corallina var. nobilis forma stuartiana
Artist not stated in the record · 4 Feb 1961
Newhaven Group
Hill and Adamson · 1843–47
Corymbia calophylla (Lindl.) K.D. Hill & L.A.S. Johnson
Artist not stated in the record · 29 Jul 1957
John Henning with Group of Ladies
Hill and Adamson · 1843–47
Diplopeltis huegelii Endl.
Artist not stated in the record · 2 Sep 1981
![[Officer of the 92nd Gordon Highlanders Reading to the Troops, Edinburgh Castle], by Hill and Adamson](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDT4215.jpg&w=3840&q=75)
[Officer of the 92nd Gordon Highlanders Reading to the Troops, Edinburgh Castle]
Hill and Adamson · April 9, 1846
Zantedeschia aethiopica (L.) Spreng.
Artist not stated in the record · 5 Sep 1981
Afghans
Hill and Adamson · 1843
Pteridium esculentum (G. Forst.) Cockayne
Artist not stated in the record · 5 Sep 1981
Dr. George Bell, Alexina, Lady Moncrieff and Rev. Thomas Bell
Hill and Adamson · 1843–1847
Macropidia fuliginosa (Hook.) Druce
Artist not stated in the record · 2 Nov 1962
George Troup and William Gibson
Hill and Adamson · 1843–1847
Ehrharta melicoides Thunb.
Artist not stated in the record · 30 Aug 1981
W. S. Orr and Peter Scot Fraser
Hill and Adamson · 1843–1847
Haemodorum paniculatum Lindl.
Artist not stated in the record · 24 Sep 1981
The Adamson Family
Hill and Adamson · 1843–1847
Hibbertia montana Steud.
Artist not stated in the record · 14 Aug 1957
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. 17 matched · 17 examined · 3 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. 125628 matched · 40 examined · 21 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 2026-09-02 20:40 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.