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 “Albany Letter Express definitive handstamp delivered March 24, 1970” — 64 records examined, 4 dropped by the rights gate.
Archives queried 2026-08-31 22:55 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Boy with a Sword
Edouard Manet · 1861
Albany Letter Express definitive handstamp delivered March 24, 1970
Artist not stated in the record · c. 1970
Joan of Arc
Jules Bastien-Lepage · 1879
Albany Letter Express definitive handstamp of moveable rubber type
Artist not stated in the record · c. 1970
Fan Mount: Dancers
Edgar Degas · 1879
Receipt for mail to be delivered on March 24, 1970
Artist not stated in the record · c. 1970
Madonna and Child Enthroned with Saints
Raphael (Raffaello Sanzio or Santi) · ca. 1504
Receipt for mail to be delivered on March 24
Artist not stated in the record · c. 1970
Venus and the Lute Player
Titian · ca. 1565–70
First trial impression of handstamp
Artist not stated in the record · c. 1970
Soap Bubbles
Jean Siméon Chardin · ca. 1733–34
Albany Letter Express label from 1st printing of 500
Artist not stated in the record · c. 1970
L'Arlésienne: Madame Joseph-Michel Ginoux (Marie Julien, 1848–1911)
Vincent van Gogh · 1888–89
Albany Letter Express label from 2nd printing of 500
Artist not stated in the record · c. 1970
Federico Gonzaga (1500–1540)
Francesco Francia · 1510
1865 adhesive label of S.A. Taylor’s Albany Letter Express
Artist not stated in the record · c. 1970
The Capture of Carthage
Giovanni Battista Tiepolo · 1725–29
Unattached Postal Strike March 1970, posted in Canada label
Artist not stated in the record · c. 1970
The Battle of Vercellae
Giovanni Battista Tiepolo · 1725–29
Unattached Postal Strike March 1970, posted in Canada label
Artist not stated in the record · c. 1970
The Harvesters
Pieter Bruegel the Elder · 1565
Sketch for design for label
Artist not stated in the record · c. 1970
Madame Frederic Breyer (Fanny Hélène Van Bruyssel, 1830–1894)
Gustave Courbet · 1858
Proof impression number 3 of 4 for the 1970 label
Artist not stated in the record · c. 1970
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. 46 matched · 24 examined · 0 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. 770242 matched · 40 examined · 4 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 22:55 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.