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 “Mason Jackson” — 60 records examined, 24 dropped by the rights gate.
Archives queried 2026-09-01 01:47 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Daniel Maclise, R.A., from "Illustrated London News"
Mason Jackson · May 9, 1868
Rendezvous of Mosby's Men
Mason Jackson, 1819 - 1903 · 1865
Fraternal Assistance, from "Illustrated London News"
Mason Jackson · August 19, 1865
Charles Jackson and John Mason Williams
Auguste Edouart, 1788 - 1861 · 1841
Portraits des premiers fondateurs de l'Académie Anglaise des Beaux-Arts (Portraits of the founding members of the Royal Academy of Arts, London), from "L'Univers Illustré"
Mason Jackson · October 2, 1862
Navarretia divaricata subsp. vividior (Jeps. & V. L. Bailey) H. Mason
Artist not stated in the record · 28 Jun 1939
Design Adopted by Governor Mason for University of Michigan (elevation and plan)
Alexander Jackson Davis · 1838
Ruppia polycarpa L.R. Mason
Artist not stated in the record · 8 Feb 1950
Tumbler
Bakewell, Page & Bakewell · ca. 1825–30
Masonic Memorial
Inger, Christian · 1860
Mason's Template for the Battlement over a Cornice at Lyndhurst for George Merritt, Tarrytown, New York
Alexander Jackson Davis · ca. 1864–65
Macrosiphum gentneri
Artist not stated in the record · 25 Oct 1946
Spring Landscape
Nukina Kaioku · 1844
Macrosiphum gentneri
Artist not stated in the record · 25 Oct 1946
Fantastic Rocks with Cascading Waterfall; Fishing Boats by a Lake Hamlet
Aiseki · first half of the 19th century
Macrosiphum gentneri
Artist not stated in the record · 25 Oct 1946
Landscapes of the Four Seasons
Yamamoto Baiitsu · 1848
Macrosiphum gentneri
Artist not stated in the record · 25 Oct 1946
Saint Peter
Lippo Memmi (Filippo di Memmo) · 1350s
Macrosiphum gentneri
Artist not stated in the record · 25 Oct 1946
The Martyrdom of Saint Lucy (Her Last Communion before Being Dragged by Oxen)
Giovanni Battista Maganza il Giovane · 1556–1630
Macrosiphum gentneri
Artist not stated in the record · 25 Oct 1946
Scrapbook of Drawings and Prints
Gideon Saint · ca. 1760
Macrosiphum gentneri
Artist not stated in the record · 25 Oct 1946
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. 20 matched · 20 examined · 3 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. 86774 matched · 40 examined · 21 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 01:47 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.