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. 19 shown for “Circular Trumpet” — 60 records examined, 33 dropped by the rights gate.
Archives queried 2026-09-06 16:01 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Circular Trumpet
Artist not stated in the record · ca. 1830
Bugle
Unidentified · 1916-1970
Soprano Helicon in B-flat
Artist not stated in the record · mid-19th century
Presentation Trumpet, "Avoca Hose Co."
unknown · ca 1887
Tenor Cornetto in D
Artist not stated in the record · 17th century
Speaking Trumpet
unknown · unknown
Tenor Slide Trombone in B-flat
Jeremias Franciscus Verhoeven · 1827–49
Bottle
Artist not stated in the record · 1st–4th century
Narsĩngā
Artist not stated in the record · 19th century
Lily Vase
New England Glass Company, American, East Cambridge, Massachusetts, 1818 – 1888 · 1883–88
Roundel with Scenes of the Attack on the Castle of Love
Artist not stated in the record · ca. 1320–40
Pipe bowl
Artist not stated in the record · 19th century
The Triumph of Fame; (reverse) Impresa of the Medici Family and Arms of the Medici and Tornabuoni Families
Giovanni di ser Giovanni Guidi (called Scheggia) · ca. 1449
Pomander
Artist not stated in the record · 16th century
Seated youth with a lamp in the form of a snail shell
Andrea Briosco, called Riccio · possibly late 16th–early 17th century
Model for a Proposed Monument to Commemorate the Invention of the Balloon
Clodion (Claude Michel) · ca. 1784
Whistle
Cupisnique artist(s) · 1200–500 BCE
Whistle
Cupisnique artist(s) · 1200–500 BCE
Whistle
Cupisnique artist(s) · 1200–500 BCE
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. 20 matched · 20 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. 8500 matched · 40 examined · 33 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.7 shown
These figures describe the pass run at 2026-09-06 16:01 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.