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 “Antonio Mauro II” — 64 records examined, 26 dropped by the rights gate.
Archives queried 2026-09-02 03:32 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Perspective Design for a Stage Set of an Italian Cityscape
Antonio Mauro II · 1784–97
Medallion Portrait of Mauro Tesi, Surrounded by Architectural Ornaments, Frontispiece to the "Raccolta Di Disegni Originali Di Mauro Tesi..."
Count Cesare Massimiliano Gini, Italian, 1739 - 1821 · 1787
"Antonius" Violin
Antonio Stradivari · 1711
Design for Medallion Portrait of Mauro Tesi, Surrounded by Architectural Ornaments, Frontispiece to the "Raccolta Di Disegni Originali Di Mauro Tesi..."
Count Cesare Massimiliano Gini, Italian, 1739 - 1821 · 1787
"Francesca" Violin
Antonio Stradivari · 1694
Frieze and Masks
Artist not stated in the record · mid- 18th century
Tiburcio Pérez y Cuervo (1785/86–1841), the Architect
Goya (Francisco de Goya y Lucientes) · 1820
Vases, from Le Blanc 4.
Artist not stated in the record · ca. 1750
Saints Peter, Martha, Mary Magdalen, and Leonard
Correggio (Antonio Allegri) · ca. 1515
Stage Design, Interior of Large Hall
Artist not stated in the record · early 19th century
Study for the Equestrian Monument to Francesco Sforza
Antonio Pollaiuolo · early to mid 1480s
Project for a Ceiling
Mauro Antonio Tesi, Italian, 1730 - 1766 · ca. 1760
Saint Bridget of Sweden Receiving the Rule of Her Order
Agostino d'Antonio di Duccio · 1459
Design for a frieze with a dragon
Carlo Bianconi, Italian, 1732–1802 · mid- 18th century
Portrait of a Young Man
Antonello da Messina (Antonello di Giovanni d'Antonio) · ca. 1470
Stage Design, Sepulchral Building in Egyptian Style
Artist not stated in the record · after 1787
Christ Crowned with Thorns
Antonello da Messina (Antonello di Giovanni d'Antonio)
Book Ornament of a Classical Ruin with the Medallion Portrait of Francesco Algarotti (1712-1764)
Artist not stated in the record · ca. 1760
Maximillian II, Holy Roman Emperor (1527–1576)
Antonio Abondio · 1575
Elevations of a Door, Door Frame, Overdoor, and Adjoining Wall Panel
Mauro Antonio Tesi, Italian, 1730 - 1766 · late 18th century
Empress Maria (1520–1603)
Antonio Abondio · 1575
Design for Frieze Decoration, with Alternative Suggestions
Artist not stated in the record · late 18th century
The Island of San Michele, Venice
Francesco Guardi · 1770s
Elevation of a Catafalque for a General
Mauro Antonio Tesi, Italian, 1730 - 1766 · 1700–1750
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. 453 matched · 24 examined · 2 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. 70796 matched · 40 examined · 24 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 2026-09-02 03:32 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.