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. 14 shown for “Iron bar” — 64 records examined, 42 dropped by the rights gate.
Archives queried 2026-09-04 03:22 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Iron bar
Artist not stated in the record · 7th–5th century BCE ?
Elevation of a Tower
Artist not stated in the record · 1753
Lectern
Artist not stated in the record · early 16th century
Dining Hall, Asylum, from "Ackermann's Repository"
Artist not stated in the record · 1808
Choir screen from the Cathedral of Valladolid
Rafal Amezúa · completed ca. 1763
Horse Bit
Artist not stated in the record · 7th–9th century
Curb Bit
Artist not stated in the record · ca. 1550
Curb Bit
Artist not stated in the record · second quarter 14th century
Iron with Gold Terminals
Artist not stated in the record · second half of the 8th–second half of the 10th century
Snaffle Bit
Artist not stated in the record · 4th–5th century
Curb Bit
Artist not stated in the record · 1st century BCE–1st century CE
Support Bar
Artist not stated in the record · ca. 1600
Latch Bar
Artist not stated in the record · 1700–1800
Pair of andirons with cross bar
Artist not stated in the record · 15th 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. 266 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. 26045 matched · 40 examined · 38 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.2 shown
These figures describe the pass run at 2026-09-04 03:22 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.