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. 12 shown for “Sierra Engineering Co.” — 24 records examined, 12 dropped by the rights gate.
Archives queried 2026-09-01 18:12 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.
Court official from a commemorative altar
Ìgùn Ẹ́rọ̀nwwọ̀n (brass-casting guild) artists · 16th–17th century
Winchester Model 1886 Takedown Rifle decorated by Tiffany & Co. (serial no. 120528)
Winchester Repeating Arms Company · 1899–1900
Smith & Wesson .44 Double-Action Frontier Model Revolver decorated by Tiffany & Co. (serial no. 8401), with Case and Cleaning Rod
Smith & Wesson · ca. 1893
Design for a Wall Monument
Francesco di Giorgio Martini · ca. 1490
THE DAM/ AND/ WATER WORKS./ PHILADELPHIA.
Henshall, Williamson & Co. · ca. 1824–ca. 1828
Dish
William Ridgway, Son & Co. · ca. 1844–ca. 1846
CATSKILL MOSS/ KOSCIUSCO'S TOMB/ C.C.
William Ridgway, Son & Co. · ca. 1844–ca. 1846
Nature Sets Her Hound Youth after the Stag (from The Hunt of the Frail Stag)
Artist not stated in the record · ca. 1495–1510
Old Age Drives the Stag out of a Lake and the Hounds Cold, Heat, Anxiety, Vexation, Heaviness, Fear, Age, and Grief Attack Him, (from The Hunt of the Frail Stag)
Artist not stated in the record · ca. 1495–1510
Vanity Sounds the Horn and Ignorance Unleashes the Hounds Overconfidence, Rashness and Desire (from The Hunt of the Frail Stag)
Artist not stated in the record · ca. 1495–1510
Close-Up of Crater Copernicus
National Aeronautics and Space Administration (NASA) · November 23, 1966
Crater Aristarchus, Schroter's Valley, and Vicinity
National Aeronautics and Space Administration (NASA) · 1967
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. 73 matched · 24 examined · 12 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-09-01 18:12 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.