Two 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 “Photograph of snorkel chute curbside mailbox” — 40 records examined, 9 dropped by the rights gate.
Archives queried 2026-08-31 23:18 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Photograph of snorkel chute curbside mailbox
Artist not stated in the record · c. 1953

Toy mailbox bank
Artist not stated in the record · c. 1946

Cutler lobby collection box Model F
Cutler Mail Chute Company · 1920

Cutler lobby mailbox
Cutler Mail Chute Company · 1920-2001

Photograph of boy mailing a letter
Artist not stated in the record · c. 1880

Photograph of letter carrier retrieving mail from mailbox
Artist not stated in the record · 1992

Photograph of woman mailing a letter
Artist not stated in the record · c. 1960

Photograph of woman mailing a letter
Van Dorn Iron Works · 1920s

Photograph of rural carrier near mailbox
Artist not stated in the record · c. 1905

Photograph of postcard of rural carrier's Christmas
Artist not stated in the record · 1915

Photograph of girl mailing a letter
Artist not stated in the record · c. 1920

Photograph of letter carrier in snow
Artist not stated in the record · c. 1920
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. 2896580 matched · 40 examined · 9 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 23:18 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.