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 “Martin Engelbrecht” — 64 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-03 02:07 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Ludi equestres. Das Thurnieren (The Tournament)
Martin Engelbrecht · ca. 1730
Couple Beneath Tree
Artist not stated in the record · 1684-1756
Alphabet Letters (5 Vowels)
Martin Engelbrecht · 18th century
Design for a Screen Fan
Martin Engelbrecht, German, 1684–1756 · 1730–50
Design for the Porcelein Cabinet at the Charlottenburg Palace, other side
Martin Engelbrecht · ca. 1711–56
Couple Beneath Tree, Third Figure Lurking
Artist not stated in the record · 1684-1756
Design for a Pulpit, plate 4 from an Untitled Series of Pulpit Designs
Martin Engelbrecht · printed ca. 1750–56
Cartouche with Chinoiserie Motifs
Artist not stated in the record · ca. 1740
Design for a Pulpit, plate 1 from an Untitled Series of Pulpit Designs
Martin Engelbrecht · printed ca. 1750–56
Three Figures Surrounding a Sundial
Artist not stated in the record · 1684-1756
Design for a Pulpit, plate 2 from an Untitled Series of Pulpit Designs
Martin Engelbrecht · printed ca. 1750–56
Europe
Martin Engelbrecht, German, 1684–1756 · 1717
Design for a Pulpit, plate 3 from an Untitled Series of Pulpit Designs
Martin Engelbrecht · printed ca. 1750–56
Flowers
Martin Engelbrecht, German, 1684–1756 · 1725-1750
Man Holding a Crossbow
Martin Engelbrecht
Asia
Martin Engelbrecht, German, 1684–1756 · 1717
Decorated Roman alphabet
Martin Engelbrecht · 18th century
Group in a Landscape
Artist not stated in the record · 1758–1786
Paper Theater or Diorama of an Italianate Villa and Garden
Martin Engelbrecht · ca. 1730–56
Flowers
Martin Engelbrecht, German, 1684–1756 · 1725-1750
Man Sitting and Woman Carrying a Fish
Martin Engelbrecht · first half 18th century
Flowers
Martin Engelbrecht, German, 1684–1756 · 1725–50
Sconce Representing Winter, from "Wand-Leuchter die 4 Jahrseiten vorstellend"
Martin Engelbrecht · ca. 1730–56
Africa
Martin Engelbrecht, German, 1684–1756 · 1717
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. 144 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. 38686 matched · 40 examined · 0 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 2026-09-03 02:07 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.