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. 21 shown for “Helmet Bowl” — 64 records examined, 31 dropped by the rights gate.
Archives queried 2026-09-08 22:02 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Armor (Gusoku)
Saotome Ietada · 16th and 18th centuries
Chimney Pieces, Furniture and Ceiling Medallion
Felice Giani, Italian, 1758–1823 · 1790–1810
Helmet
Artist not stated in the record · ca. 1560
Fire Helmet, "Trenton Hose Co. 1 EW"
Cairns & Brother · 1840
Armor (Gusoku) with Box
Neo Masanobu 根尾正信 · 19th century; helmet bowl, early 18th century
Wine Glass with King David and Jonathan
Artist not stated in the record · 1750–1775
ECUELLES
Henri Sallembier, French, ca. 1753 - 1820 · 1805
Helmet Bowl (Hoshi-Kabutobachi)
Artist not stated in the record · 12th–13th century
Two Candlesticks
Artist not stated in the record · 1625–50
Helmet
Artist not stated in the record · dated A.H. 1196/1781–82 CE
Design for a Tureen
Johann Nepomuk · 1825-1835
Helmet
Artist not stated in the record · ca. 1580
Drawing
Felice Giani, Italian, 1758–1823 · About 1815
Armor (Gusoku)
Bamen Tomotsugu · 18th century
Twenty-Four Putti, Decoration for the Dinning Room, Villa Aldini, Montmorency, France
Felice Giani, Italian, 1758–1823 · 1812–13
Burgonet all'Antica
Artist not stated in the record · ca. 1535–45
Bacchus, Apollo and Mnemosine; Minerva with Trophies
Felice Giani, Italian, 1758–1823 · 1798–1801
Helmet
Artist not stated in the record · early 17th century
Inkstand
Giuseppe Barberi, Italian, 1746–1809 · ca. 1800
Helmet (Hoshi- Kabuto) in the 16th-Century Style
Saotome Ienari · probably late 17th–early 18th century
Armor (Gusoku)
Yukinoshita Sadaiyé · 17th century
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. 175 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. 29693 matched · 40 examined · 30 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.10 shown
These figures describe the pass run at 2026-09-08 22:02 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.