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 “Transatlantic cover to New York” — 64 records examined, 16 dropped by the rights gate.
Archives queried 2026-09-08 16:11 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Winchester Model 1886 Takedown Rifle decorated by Tiffany & Co. (serial no. 120528)
Winchester Repeating Arms Company · 1899–1900
Transatlantic Cover to New York
Artist not stated in the record · 1847
Smith & Wesson .44 Double-Action Frontier Model Revolver decorated by Tiffany & Co. (serial no. 8401), with Case and Cleaning Rod
Smith & Wesson · ca. 1893
Transatlantic Cover to New York
Artist not stated in the record · 1869
State bed from Hampton Court, Herefordshire
Artist not stated in the record · ca. 1698
Transatlantic cover to New York
Artist not stated in the record · February 23, 1856
Saint Roch
Francesco Francia · 1502
2c Andrew Jackson pair on transatlantic cover
Artist not stated in the record · June 18, 1875
Upholstered armchair, originally from a set of eight, from Burley-on-the-Hill, Rutland (one of a pair)
Thomas Roberts · ca. 1689
Transatlantic cover to London
Artist not stated in the record · May 19, 1860
Cup with cover
Artist not stated in the record · ca. 1650–60
Transatlantic cover to Madrid, Spain
Artist not stated in the record · December 18, 1876
Tureen with cover
Vienna · ca. 1735
Transatlantic cover to Boston
Artist not stated in the record · 1857
Cover
Artist not stated in the record · mid to late 15th century
Letter from inside Charles Lindbergh transatlantic flight cover
Artist not stated in the record · May 16, 1927
Cover
Artist not stated in the record · 19th century
Transatlantic cover to London
Artist not stated in the record · September 7, 1858
Cover
Artist not stated in the record · ca. 1860
Transatlantic cover to Florence, Italy
Artist not stated in the record · December 17, 1863
Cover
Artist not stated in the record · 17th century
2c Andrew Jackson grilled pair on transatlantic cover
Artist not stated in the record · June 4, 1875
Cover
Artist not stated in the record · first half 17th century
Transatlantic cover to Selkirk, Scotland
Artist not stated in the record · 1857
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. 6086 matched · 24 examined · 10 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. 1242419 matched · 40 examined · 6 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 16:11 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.