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 “Johann Gottlieb Müller” — 64 records examined, 7 dropped by the rights gate.
Archives queried 2026-09-01 13:27 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Watch
Johann Gottlieb Müller · 19th century
George Washington
Johann Gottlieb Schmidt, 1742 - 1800 · c. 1775-80
Lion (one of a pair)
Johann Gottlieb Kirchner · ca. 1732
Albums of Prints: German Rocaille Designs
Caspar-Gottlieb Eisler, German, active 1707–1755 · 18th century
Basset Horn in F
Johann Gottlieb Freyer · ca. 1800
La Fraîcheur de la Soirée
Artist not stated in the record · ca. 1780
Hoopoe (Wiedehoppe) (one of a pair)
Meissen Manufactory · 1741
Portrait of a Gentleman
Johann Gottlieb Glume, German, 1711 - 1778 · 1740-1770
Wagtail (one of a pair)
Meissen Manufactory · 1733
Soup Tureen
Meissen Porcelain Manufactory, German, active from 1710 to the present · ca. 1745
Fountain and basin
Meissen Manufactory · ca. 1727–32
View of the Pitti Palace in Florence, Plate 2 from "Scelta di XXIV Vedute delle principali contrade, piazze, chiese, e palazzi della Città di Firenze"
Artist not stated in the record · ca. 1743
Lioness (one of a pair)
Meissen Manufactory · ca. 1732
Realto Bridge, Court of Justice, Public German Warehouse
John Bowles, British, active 1724 - 1756 · 1744
Horse Armor Made for Johann Ernst, Duke of Saxony-Coburg (1521–1553)
Kunz Lochner · dated 1548
Chara canescens Loisel.
Artist not stated in the record · Oct 1844
Portrait of Johann Gottlieb Samuel Rösel
Ludwig Emil Grimm
Grimmia montana Bruch & Schimp.
Artist not stated in the record
Waxwing (one of a pair)
Meissen Manufactory · 1741
Bryum botteri C. Mohr
Artist not stated in the record
The Battle of Bunker's Hill (June 17, 1775)
Johann Gotthard Müller · 1788–98
Ode on the Spring
Thomas Gray, British, 1716 – 1771 · 1753
Astrolabe
Regiomontanus · 1462
Title Page
Thomas Gray, British, 1716 – 1771 · 1753
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. 146 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. 13224 matched · 40 examined · 7 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 2026-09-01 13:27 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.