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. 17 shown for “Grassfields artist” — 62 records examined, 24 dropped by the rights gate.
Archives queried 2026-09-01 10:56 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Helmet crest from a nja masquerade
Grassfields artists · ca. 1800–80

Andropogon macrophyllus Stapf in Oliv.
Artist not stated in the record · 10 Nov 1975

Head from a slit drum
Grassfields artist · late 19th century

Schizachyrium rupestre Stapf
Artist not stated in the record · 20 Feb 1946

Tsesah crest
Grassfields artist · 18th century

Rhacomitrium heterostichum
Artist not stated in the record · 8 May 1904

Helmet crest from a Ngumba/Kwifon masquerade
Grassfields artist · 19th century

Petiveria alliacea L.
Artist not stated in the record · 19 Sep 1906

Helmet crest
Grassfields artist · 1830–55

Paspalum floridanum Michx.
Artist not stated in the record · 31 Aug 1930

Aegilops cylindrica Host
Artist not stated in the record · 9 Jun 1956

Dichanthelium lucidum (Ashe) LeBlond
Artist not stated in the record · 4 Aug 1934 to 5 Aug 1934

Noticastrum acuminatum (DC.) Cuatrec.
Artist not stated in the record · 28 Mar 1947

Pentanisia prunelloides (Klotzsch) Walp.
Artist not stated in the record · 5 Dec 1962

Male figure
Undetermined artist · Early 19th century

Rubus hispidus L.
Artist not stated in the record · 11 Jun 1940

Leucoma luteipes
Artist not stated in the record · 1 Jun 1966 to 31 Jul 1966
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. 22 matched · 22 examined · 17 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.5 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 64182 matched · 40 examined · 7 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 2026-09-01 10:56 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.