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. 18 shown for “Yamada School” — 49 records examined, 5 dropped by the rights gate.
Archives queried 2026-08-27 09:59 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Case (Inrō) with Design of Deer and Lanterns at Kasuga Shrine
Yamada School · ca. 1800
Chondrophycus intermedius (Yamada) Garbary & J.T. Harper
Artist not stated in the record · 31 Aug 1994
Sometsuke Sencha Teapot and Cups
Yamada Hōgyoku 山田抱玉 · 1830s
Acrochaetium howei (Yamada) Papenf.
Artist not stated in the record · 8 Nov 1988
Blade for a Sword (Katana)
Masazane · dated 1526
Chondrophycus undulatus (Yamada) Garbary & J.T. Harper
Artist not stated in the record · 17 Jun 1992
Bifacial Sickle Insert
Artist not stated in the record · ca. 6900–3100 B.C.
Palisada intermedia (Yamada) K.W. Nam
Artist not stated in the record · 17 Jun 1992
Bifacial Sickle Insert
Artist not stated in the record · ca. 6900–3100 B.C.
Masudaphycus irregularis (Yamada) S.C. Lindstrom
Artist not stated in the record · Aug 1956
A Woman Seated beside a Vase of Flowers (Madame Paul Valpinçon?)
Edgar Degas · 1865
Laurencia okamurae Yamada
Artist not stated in the record · 2 May 1900
Symphyocladia latiuscula (Harv.) Yamada
Artist not stated in the record · 21 Jan 1970
Caulerpa filicoides Yamada
Artist not stated in the record · 3 Sep 1955
Gloiopeltis complanata (Harv.) Yamada
Artist not stated in the record · Jun 1900
Symphyocladia latiuscula (Harv.) Yamada
Artist not stated in the record · 13 Jun 1976
Laurencia okamurae Yamada
Artist not stated in the record · 19 Jun 2007
Caulerpa filicoides Yamada
Artist not stated in the record · 25 Aug 1955
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. 9 matched · 9 examined · 3 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. 16871 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 2026-08-27 09:59 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.