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. 15 shown for “Master H.A. or A.H.” — 64 records examined, 38 dropped by the rights gate.
Archives queried 2026-08-26 20:20 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Mary of Burgundy
Master H.A. or A.H. · 1528
US Army Quartermaster's Department letter
Artist not stated in the record · November 1, 1862
Moses and Aaron before Pharaoh: An Allegory of the Dinteville Family
Master of the Dinteville Allegory · 1537
Bignonia lilacina (A.H. Gentry) L.G. Lohmann
Artist not stated in the record · 3 Mar 1984
Smallsword with Scabbard
Master GG · hallmarked 1773–74
Amphitecna latifolia (Mill.) A.H. Gentry
Artist not stated in the record · 3 Jan 1920 or 1 Mar 1920
Snuffbox with six scenes of putti at play
Jean Georges (or George) · ca. 1761–62
The Musicians
Caravaggio (Michelangelo Merisi) · 1597
Relief from a Pulpit with the Symbol of Saint Luke
Master Christophanus or Stephanus · ca. 1180
Landscapes after historical painters
Yun Xiang · datable to 1638 or 1650
Margaret of Austria
Jean Hey (called Master of Moulins) · ca. 1490
A Vase of Flowers
Margareta Haverman · 1716
The Virgin and Child in Majesty and the Adoration of the Magi
Master of Pedret · ca. 1100
Game table
David Roentgen · ca. 1780–83
Madonna and Child Enthroned with Saints
Raphael (Raffaello Sanzio or Santi) · ca. 1504
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. 7931 matched · 24 examined · 1 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. 249082 matched · 40 examined · 37 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.3 shown
These figures describe the pass run at 2026-08-26 20:20 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.