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 “Sebastiano Serlio” — 54 records examined, 5 dropped by the rights gate.
Archives queried 2026-08-27 18:57 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Bononiensis de architectura libri quinque quibus cuncta fere architectonicae facultatis mysteria docte, perspicue . . .
Sebastiano Serlio · 1568–69
Lunette with St. Peter and St.Paul with St. Matthew and the Prophet Isaiah, Study after Sebastiano del Piombo
Felice Giani, Italian, 1758–1823 · 1821–22
Il terzo libro di Sebastiano Serlio (Bolognese)
Sebastiano Serlio · 1540
Campanula elatines L.
Artist not stated in the record · Aug 1889
The Jabach Family
Charles Le Brun · ca. 1660
Lunette with Saints Peter and Paul, Matthew and the Prophet Isaiah, Study after Sebastiano del Piombo
Felice Giani, Italian, 1758–1823 · 1821–22
Corinthian base, from "Speculum Romanae Magnificentiae"
Sebastiano Serlio · 1544
Cedrela tonduzii C. DC.
Artist not stated in the record · 1922
Compendium of Architectural Books by Sebastiano Serlio (Books I-V)
Sebastiano Serlio · 1544, 1545, 1547
Pernettya prostrata (Cav.) DC.
Artist not stated in the record · Mar 1937
Il primo libro d'architettura di Sebastiano Serlio Bolognese. Il secondo libro di perspecttia di Sebastiano Serlio, Bolognese.
Sebastiano Serlio · 1545
The Banquet of Cleopatra
Sebastiano Mazzoni, Italian, born Florence, Italy ca.1611-died Venice, Italy ca.1678 · 1660
Tutte l'opere d'architettura
Sebastiano Serlio · 1584
Vignette, Trophy of Turkish Arms
Sebastiano Conca, Italian, 1680 - 1764 · ca. 1720
Libro primo (-quinto, estraordinario) d'architettura
Sebastiano Serlio · 1566
Design for a Buckle
Giovanni Sebastiano Meyandi, Italian, active 1762 - 1794 · ca. 1780
Il terzo libro di Sabastiano Serlio Bolognese
Sebastiano Serlio · 1540
The Madonna With Sleeping Child
John Boydell, British, 1719 – 1804 · 1781
Serlio's five books on architecture
Sebastiano Serlio · 1550, 1553
Design for an Earring
Giovanni Sebastiano Meyandi, Italian, active 1762 - 1794 · ca. 1755
Reigles generales de l'architecture, sur les cincq manieres d'edifices
Sebastiano Serlio · 1545
Designs for Three Brooches
Giovanni Sebastiano Meyandi, Italian, active 1762 - 1794 · ca. 1770
Den eersten (-vijfsten) boeck van architecturen
Sebastiano Serlio · 1546, 1549, 1553
Design for a Brooch
Giovanni Sebastiano Meyandi, Italian, active 1762 - 1794 · ca. 1765
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. 17 matched · 17 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. 37 matched · 37 examined · 5 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 2026-08-27 18:57 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.