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. 24 shown for “1c Franklin and 2c Washington cover” — 64 records examined, 7 dropped by the rights gate.
Archives queried 2026-09-01 03:48 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Benjamin Franklin (1706–1790)
Joseph Siffred Duplessis · 1778
1c Franklin and 2c Washington cover
Artist not stated in the record · February 23, 1889
Quilt, Album pattern
Brown and Turner families · begun 1846
1c Franklin and 2c Andrew Jackson War Department combination cover
Artist not stated in the record · December 6, 1878
The Emperor's Carpet
Artist not stated in the record · second half 16th century
1c Franklin and 2c Jackson on cover
Artist not stated in the record · 1863-1867
Benjamin Franklin
Charles L. Hogeboom · by 1885
1c Franklin and 3c Washington with USPO Despatch carrier cancel on cover
Artist not stated in the record · c. 1851
Yashoda with the Infant Krishna
Artist not stated in the record · early 12th century
1c USPO Despatch carrier stamp on cover
Artist not stated in the record · c. 1851
Cup with cover and stand (one of a pair)
John Parker · 1766/67
2c Shanghai China surcharge on 1c Washington single
Artist not stated in the record · 1919
Ewer from Burghley House, Lincolnshire
Artist not stated in the record · Chinese porcelain 1573– ca. 1585, British mounts ca. 1585
3c Washington with Teese & Co. Penny Post local stamp on cover
Artist not stated in the record · c. 1852
Wall painting on black ground: Aedicula with small landscape, from the imperial villa at Boscotrecase
Artist not stated in the record · last decade of the 1st century BCE
1c Franklin single on circular
National Bank Note Company · August 17, 1861
The Life of the Virgin
Adriaen Isenbrant · after 1521
3c Washington with Blood's Penny Post carrier stamp on cover
Artist not stated in the record · 1853
The Anhalt Medallion Carpet
Artist not stated in the record · probably first half 16th century
2c Washington plate proof
Bureau of Engraving and Printing · June 8, 1896
Armored Cavalryman
Artist not stated in the record · 18th–19th century
1c Franklin with New York Carrier cancel cover
Artist not stated in the record · c. 1852
Mask and Foot Cover of "Corn Mummy"
Artist not stated in the record · 400–250 BCE
1c Franklin on Confederate cover
Artist not stated in the record · May 25, 1861
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. 4154 matched · 24 examined · 6 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.12 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1583878 matched · 40 examined · 1 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 03:48 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.