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 “1838 Howarth and Jones's Patent Model of a Cotton Flyer” — 40 records examined, 18 dropped by the rights gate.
Archives queried 2026-09-02 21:29 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
1838 Howarth and Jones's Patent Model of a Cotton Flyer
Artist not stated in the record · 1838-12-28
1838 Yerkes's Patent Model of a Spindle and Flyer
Artist not stated in the record · 1838-06-12
1838 Mason's Patent Model of a Speeder for Roving Cotton
Artist not stated in the record · 1838-05-04
Evaporating Salt Device Patent Model
Artist not stated in the record · 1871
1838 Faber's Patent Model of a Hand Card
Artist not stated in the record · 1838-08-01
1838 Angell's Patent Model of a Loom Temple
Artist not stated in the record · 1838-10-19
1838 Kimball's Patent Model of a Loom Let-Off and Take-Up
Artist not stated in the record · 1838-05-30
1838 Day's Patent Model of a Cordage Machine
Artist not stated in the record · 1838-02-07
1838 Humphries's Patent Model of a Carpet
Artist not stated in the record · 1838-12-10
1838 Holland's Doubling and Twisting Silk Machine
Artist not stated in the record · 1838-10-10
1838 Parsons's Patent Model of a Cloth Shearing Machine
Artist not stated in the record · 1838-11-25
1838 Bigelow's Patent Model of a Loom
Artist not stated in the record · 1838-01-06
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. The archive returned no records for this term.0 matched - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 4074358 matched · 40 examined · 18 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.12 shown
These figures describe the pass run at 2026-09-02 21:29 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.