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. 22 shown for “The American Express Company, American, founded 1850” — 64 records examined, 38 dropped by the rights gate.
Archives queried 2026-08-31 18:06 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Smith & Wesson Model 1 ½ Second Issue Revolver (serial no. 30451) with Case
Smith & Wesson · 1869
Director's visor worn by Melvin Van Peebles
The American Express Company, American, founded 1850 · Mid to late 20th century
Courting flute (siyotanka)
Artist not stated in the record · ca. 1850–1900
2c Black on Buff Paper Adams' City Express Post Single
Artist not stated in the record · 1850-1851
The Factory Village
Julian Alden Weir · 1897
25c Black on Pink Paper Adams & Co.'s Express Single
Artist not stated in the record · 1854
Teakettle
John C. Moore · 1850
Burlington mail car model
Artist not stated in the record · c. 1930-1970
The Adoration of the Shepherds
Andrea Mantegna · shortly after 1450
Delaware Company Cape
unknown · 1840-1850
Sugar bowl
C. Ihmsen Company · 1850–60
Fire Engine Plate, "Newton"
unknown · 1850
Paperweight
New England Glass Company · 1850–75
Mitchell, South Dakota Owney tag
Artist not stated in the record · 1888-1897
Paperweight
New England Glass Company · 1850–80
Express from Richmond to Louisville posted to Boston cover
Artist not stated in the record · August 17, 1861
Paperweight
William Leighton Sr. · ca. 1850
![[The Staff of the Express], by Unidentified](/_next/image?url=https%3A%2F%2Fids.si.edu%2Fids%2Fdownload%3Fid%3DSAAM-1994.91.230_1.jpg&w=3840&q=75)
[The Staff of the Express]
Unidentified · ca. 1850
Pitcher
Brooklyn Flint Glass Company · 1850–55
Fire Association of Philadelphia Fire Mark
unknown · 1850
United States Express Company receipt
Artist not stated in the record · October 23, 1858
United States Express Company receipt
Artist not stated in the record · October 27, 1858
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. 3207 matched · 24 examined · 14 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.10 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1648389 matched · 40 examined · 24 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 2026-08-31 18:06 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.