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. 16 shown for “National Association of Letter Carriers Delegate Convention Badge” — 44 records examined, 2 dropped by the rights gate.
Archives queried 2026-09-08 21:24 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Annunciation Triptych (Merode Altarpiece)
Robert Campin · ca. 1427–32
National Association of Letter Carriers Delegate Convention Badge
Artist not stated in the record · 1934
The Rest on the Flight into Egypt
Gerard David · ca. 1512–15
National Association of Letter Carriers Delegate Convention Badge
Artist not stated in the record · 1934
Saint Lawrence Enthroned with Saints and Donors
Fra Filippo Lippi · 1440s
National Association of Letter Carriers Convention Badge
Artist not stated in the record · 1899
Design Fragment for the Left Side of the 'Fonte Gaia' in Siena
Jacopo della Quercia (Jacopo di Pietro d’Angelo di Guarnieri) · 1415–16
57th Biennial Convention of National Association of Letter Carriers badge
Artist not stated in the record · August 19, 1990 - August 24, 1990
NALC convention delegate badge
Artist not stated in the record · September 4-9, 1911
1948 Delegate Miami, FL NALC Annual Convention badge
Artist not stated in the record · October 11-16, 1948
NALC convention badge
Artist not stated in the record · 1930
1939 V. Kozeluha Cleveland, OH NALC Golden Jubilee Convention badge
Artist not stated in the record · 1939
1941 Marie Kozeluha Cleveland, OH NALC National Convention badge
Artist not stated in the record · 1941
Cleveland, OH NALC convention badge
Artist not stated in the record · 1964
Post Office Clerks convention badge from Joint Convention of Letter Carriers
Artist not stated in the record · 1936
1941 V. Kozeluha Cleveland, OH NALC National Convention badge
Artist not stated in the record · 1941
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. 4 matched · 4 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.4 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 2933727 matched · 40 examined · 2 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 21:24 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.