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 “Wessmann, Martin F.” — 64 records examined, 16 dropped by the rights gate.
Archives queried 2026-09-10 17:45 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Combination table
Martin Carlin · ca. 1775
Telegraph Key
Wessmann, Martin F. · 1873
Guitar
Christian Frederick Martin · ca. 1838
Wessmann Game Counter, U.S. Patent Office Model
Wessmann, Charles B. · 1878
Guitar
Christian Frederick Martin · ca. 1837
Acis rosea (F. Martin bis) Sweet
Artist not stated in the record
Apostle spoon: St. Andrew
Martin Hewitt · 1613–14
Acis rosea (F. Martin bis) Sweet
Artist not stated in the record · 21 Oct 1888
Guitar
Christian Frederick Martin · before 1867
Acis rosea (F. Martin bis) Sweet
Artist not stated in the record
Gallerie des Modes et Costumes Français Desinés D'Apres Nature
G. F. R. Molé · 1778 [to 1787]
Serjania glabrata f. genuina Radlk.
Artist not stated in the record · 9 Mar 1962
Drop-front desk (secrétaire à abattant or secrétaire en cabinet)
Martin Carlin · ca. 1776
Serjania glabrata f. genuina Radlk.
Artist not stated in the record · 8 Mar 1962
Marble stele (grave marker) with a youth and little girl, and a capital and finial in the form of a sphinx
Artist not stated in the record · ca. 530 BCE
Serjania glabrata f. genuina Radlk.
Artist not stated in the record · 3 Apr 1962
Valve Trumpet in F
Courtois & Mille · 1881–85
Sanchezia longiflora (Hook. f.) Hook. f. ex Planch.
Artist not stated in the record · 15 Sep 1977
St. Martin
Hans Baldung (called Hans Baldung Grien) · 16th century
Symphonia globulifera L. f.
Artist not stated in the record · 5 Jan 1961
Gwantigi
Bamana numu (blacksmith) · 15th–17th century
Ficus pertusa L. f.
Artist not stated in the record · 28 Dec 1960
Portrait of Martin Luther
Johann Michael Püchler · ca. 1680–1702
Tabernaemontana siphilitica (L. f.) Leeuwenb.
Artist not stated in the record · 30 Aug 1968
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. 1256 matched · 24 examined · 9 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. 684727 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 2026-09-10 17:45 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.