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. 13 shown for “Undenom Allen's City Dispatch single” — 41 records examined, 22 dropped by the rights gate.
Archives queried 2026-09-08 10:54 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Abner's Messenger before David; The Queen of Sheba Bringing Gifts to Solomon; The Annunciation
Master of the Saint Barbara Legend · ca. 1480
Undenom Allen's City Dispatch single
Artist not stated in the record · 1882
Undenom Allen's City Dispatch single
Artist not stated in the record · 1882
Pink Allen's City Dispatch Single
Artist not stated in the record · 1882
Railway Post Office mail pouch label
Artist not stated in the record · c. 1870
Auxiliary handstamp, MISSENT
Artist not stated in the record · 20th century
Postmaster's bill from Philadelphia post office
Artist not stated in the record · June 5, 1773
Airmail schedule dispatch board
Artist not stated in the record · c. 1918-1929
Allen Cut-Off Valve, Patent Model
Artist not stated in the record · 1842
The Messenger and Educator Vol. 3 No. 6
Artist not stated in the record · March 1908
The Dispatch
Artist not stated in the record · ca. 1915
Bull's eye cancellation handstamp
Artist not stated in the record · 1870-1940
Letter to Mary Seward from John Seward
Artist not stated in the record · March 29, 1776
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. 1 matched · 1 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.1 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 332562 matched · 40 examined · 22 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 2026-09-08 10:54 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.