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 “Patent model for music type” — 64 records examined, 34 dropped by the rights gate.
Archives queried 2026-09-05 20:41 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
“Eclipse 4000” model banjo
William A. Cole · ca. 1904-1906
Patent model for music type
Artist not stated in the record · ca 1868
Figure with conical headdress and shield
Maya artist(s) · 600–800 CE
Invention for Improvement in Dulcimers
Artist not stated in the record · ca 1867
Marcantonio Pasqualini (1614–1691) Crowned by Apollo
Andrea Sacchi · 1641
Patent Model for Newspaper and Envelope Addressing Machine
Henderson, George · ca 1859
Colt Model 1851 Navy Percussion Revolver, serial no. 2
Samuel Colt · 1850
Violin Fingerboard Patent Model
Artist not stated in the record · 1853
Allegory of Sacred and Profane Love
Michele Desubleo · 1665–75
“Echo Viol” Patent Model
Artist not stated in the record · 1872
Gold-inlaid Colt Model 1849 Pocket Revolver (serial no. 63306)
Samuel Colt · ca. 1853
Aluminum Violin Patent Model
Springer, Alfred · 1891
Orpheus
Cristoforo Stati (Cristofano da Bracciano) · 1600–1601
American Guitar
Artist not stated in the record · 1854
Gold-inlaid Colt Model 1851 Navy Revolver (serial no. 20133), with Case and Accessories
Samuel Colt · ca. 1853
Patent Model
Banks, Charles W. · 1877
The Jabach Family
Charles Le Brun · ca. 1660
“Horn Violin” Patent Model
Artist not stated in the record · 1854
Collier Second Model Five-Shot Flintlock Revolver
Elisha Haydon Collier · ca. 1820
Colt Paterson Percussion Revolver, No. 5, Holster Model, serial no. 940
Samuel Colt · ca. 1840
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
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. 126 matched · 24 examined · 3 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. 7194935 matched · 40 examined · 31 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.9 shown
These figures describe the pass run at 2026-09-05 20:41 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.