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. 17 shown for “Three-Quarter Armor” — 31 records examined, 1 dropped by the rights gate.
Archives queried 2026-08-27 19:21 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
Artist not stated in the record · ca. 1400–1450 and later
Portrait of Emperor Charles V (1500-1558)
Artist not stated in the record · ca. 1580-1600
Three-Quarter Armor
Kolman Helmschmid · ca. 1525 and later
Portrait of Friedrich Ferdinand
Artist not stated in the record · ca. 1750
Helmet (Sallet)
Artist not stated in the record · late 15th–early 16th century
Portrait of Niccola Orsini (1442-1510)
Artist not stated in the record · 1590
Armor (Gusoku)
Bamen Tomotsugu · 18th century
Portrait of Emperor Leopold I (1640-1705)
Artist not stated in the record · ca. 1700
Harquebusier's Armor of Pedro II, King of Portugal (reigned 1683–1706) with Buff Coat
Richard Holden · ca. 1683 and later; buff coat, 17th–18th century
Portrait of Arthur, 3rd Duke of Bretagne (1393-1458)
Artist not stated in the record · 1710-1720
Armor
Kolman Helmschmid · ca. 1515 and later
Twelve-panel screen depicting “Spring Morning in the Han Palace” with inscription; encomium on the reverse
Sheng Nian 盛年 (active 17th century) painted the template followed by lacquer specialists · Mid-summer (May-June), 1672 (renzi [year] zhongxia [mid-summer]
Armor
Artist not stated in the record · ca. 1560–65
Sallet in the Shape of a Lion's Head
Artist not stated in the record · ca. 1475–80
Armet
LIONARDO · ca. 1440
Armor of Mail and Plate
Artist not stated in the record · late 18th–first half of the 19th century
Field Armor of King Henry VIII of England (reigned 1509–47)
Artist not stated in the record · ca. 1544
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. 381 matched · 24 examined · 0 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. 7 matched · 7 examined · 1 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.6 shown
These figures describe the pass run at 2026-08-27 19:21 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.