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 “Austrian post horn replica” — 40 records examined, 22 dropped by the rights gate.
Archives queried 2026-09-01 02:49 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.The Metropolitan Museum of Art: HTTP 403 from collectionapi.metmuseum.org. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.
Austrian post horn replica
Artist not stated in the record · 1866
The Dinner Horn, from Harper's Weekly, June 11, 1870
Winslow Homer, born Boston, MA 1836-died Prout's Neck, ME 1910 · 1870
Post card sent from Austrian field post on album page
Artist not stated in the record · March 15, 1917
Post card sent from Austrian field post on album page
Artist not stated in the record · July 24, 1917
"Anything for me, if you please?"--Post-office of the Brooklyn Fair, from Harper's Weekly, March 5, 1864
Winslow Homer, born Boston, MA 1836-died Prout's Neck, ME 1910 · 1864
Untitled (A Woman Posting a Notice on a Tree) and "Allow Me to Examine the Young Lady -", from Harper's Weekly, February 18, 1860
Winslow Homer, born Boston, MA 1836-died Prout's Neck, ME 1910 · 1860
Swedish post horn
Artist not stated in the record · 1800-1899
Southwest Postal Association convention badge
Artist not stated in the record · 1912
The Post Boy newspaper
Artist not stated in the record · March 8-10, 1719/20
Baltimore & Ohio railway mail car model
Artist not stated in the record · 1949-1956
Microtus ochrogaster similis
Artist not stated in the record · 11 Apr ----
The Post Office at Coopers Ferry document
Artist not stated in the record · March 31, 1808 - June 30, 1808
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. HTTP 403 from collectionapi.metmuseum.org. No records from this archive are shown for this query.Unavailable - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 32123 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 2026-09-01 02:49 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.