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 “Cow's Head from a frontal representation of a cow emerging from a wall” — 64 records examined, 16 dropped by the rights gate.
Archives queried 2026-08-27 07:51 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Cow's Head from a frontal representation of a cow emerging from a wall
Artist not stated in the record · 664–610 BCE
Bull Sketches, Catskill, New York
Frederic Edwin Church, American, 1826–1900 · August 1844
Terracotta rhyton (vase for libations or drinking)
Cow-Head Group · ca. 460 BCE
Drawing: Sketches of cows
Artist not stated in the record · ca. 1800
Cabinet frontal with panels from two Embriachi caskets
Baldassare degli Embriachi · ca. 1400–1409
Two Studies of Cattle
Samuel Colman, American, 1832–1920 · 1876
Burgonet
Filippo Negroli · dated 1543
Sketches of Cattle, Irvington
Samuel Colman, American, 1832–1920 · September 1876
Tomb Chapel of Raemkai: East Wall
Artist not stated in the record · ca. 2446–2389 BCE
Head of a Cow
Artist not stated in the record · ca. 1778
Cow rattle
Artist not stated in the record · ca. 1550–1300 BCE
Head of a Cow or Ox
Samuel Colman, American, 1832–1920 · 1871
Cow plaque
Artist not stated in the record · ca. 1473–1458 BCE
Bull Drinking and a Yoke, Catskill, New York
Frederic Edwin Church, American, 1826–1900 · August 1844
Head of a cow goddess
Artist not stated in the record · ca. 1300–1080 BCE
Study: a lying cow
Artist not stated in the record · ca. 1800
Saddle
Artist not stated in the record · ca. 1400–1420
Cattle, Two Grazing Cows and the Backs of Calves
Samuel Colman, American, 1832–1920 · 1875–80
Cow plaque
Artist not stated in the record · ca. 1473–1458 BCE
Study of a Grazing Cow
Samuel Colman, American, 1832–1920 · August 1876
Cow plaque
Artist not stated in the record · ca. 1473–1458 BCE
Study of a Lying Cow
Walter Shirlaw, American, b. Scotland, 1838–1909 · 1875–80
Cow plaque
Artist not stated in the record · ca. 1473–1458 BCE
Forelegs of a Standing Cow or Ox, Newport
Samuel Colman, American, 1832–1920 · 1871
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. 578 matched · 24 examined · 4 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. 3962727 matched · 40 examined · 12 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 07:51 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.