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 “Terracotta vase in the form of a siren” — 64 records examined, 8 dropped by the rights gate.
Archives queried 2026-08-28 20:38 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 vase in the form of a siren
Artist not stated in the record · ca. 550–500 BCE
Ornamental Vase Design
François Boucher, French, 1703–1770 · 1738–72
Terracotta vase in the form of a siren
Artist not stated in the record · ca. 550–500 BCE
Ornamental Vase Design
François Boucher, French, 1703–1770 · ca. 1738
Terracotta vase in the form of a siren
Artist not stated in the record · ca. 550–500 BCE
Ornamental Vase Design
Edme Bouchardon, French, 1698–1762 · 1737-1749
Siren
Colonna · ca. 1600
Ornamental Vase Design
Edme Bouchardon, French, 1698–1762 · 1738-1749
Terracotta vase in the form of a siren
Artist not stated in the record · ca. 550–500 BCE
Ornamental Vase Design
Louis Doré, French, active 18th century · 1750-1800
Terracotta askos in the form of a boar
Artist not stated in the record · 4th century BCE
Ornamental Vase Design
L.N. Percenet, French, born 1736 · 1761
Terracotta alabastron (perfume vase) in the form of a woman holding a dove
Artist not stated in the record · mid-6th century BCE
Border
Artist not stated in the record · 17th century
Vase
Louis C. Tiffany · 1893–96
Ornamental Vase Design
Juste-François Boucher, French, 1736 – 1782 · 1755-1768
Vase
Artist not stated in the record · ca. 1386–1347 BCE
Design for Ornamental Arabesque Motifs
Etienne de Lavallée-Poussin, French, 1735–1802 · 1770
Terracotta vase in the form of a bull's head
Artist not stated in the record · ca. 1450–1400 BCE
Ornamental Vase Design
Charles Leviez, French, 1708–1778 · 1756-1773
Terracotta kylix (drinking cup)
Arkesilas Painter · ca. 550 BCE
Ornamental Vase Design
Charles Leviez, French, 1708–1778 · 1756-1773
Terracotta krater
Hirschfeld Workshop · ca. 750–735 BCE
Ornamental Vase Design
Charles Leviez, French, 1708–1778 · 1756-1773
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. 19683 matched · 24 examined · 1 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. 7483621 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 2026-08-28 20:38 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.