Two 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 “Martha Susan Baker” — 64 records examined, 27 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.
Elizabeth Humphrey
Martha Susan Baker · 1899

Twilight no. 2 1898
Martha Susan Baker, born Evansville, IN 1871-died Chicago, IL 1911 · 1898

Grand Piano
Bartolomeo Cristofori · 1720

Selaginella subcaulescens Baker
Artist not stated in the record · 9 Jun 1950

Terracotta lekythos (oil flask)
Amasis Painter · ca. 550–530 BCE

Broadside for an auction of enslaved persons at the Charleston courthouse
Unidentified · 1859

Mary, Queen of Scots going forth to execution, plate X from "Friendship's Offering: A Literary Album, and Christmas and New Year's Present"
Robert Baker · 1831

Cerion uva knipensis
Artist not stated in the record · 21 Jun 2011

Chatelaine
Gorham Manufacturing Company · 1887

Viola utahensis M.S. Baker & J.C. Clausen
Artist not stated in the record · 14 Apr 1900

Double Ring
Marcus and Co. · ca. 1895

Asplenium pearcei Baker
Artist not stated in the record · 8 Mar 1988

Pair of Earrings with Snap-on Covers
Artist not stated in the record · ca. 1882–85

Piptocarpha poeppigiana (DC.) Baker
Artist not stated in the record · 20 Aug 1980

The Washington Family: George Washington, His Lady, and her Two Grandchildren by the Name of Custis–George Washington, Son Epouse, et Ses Deux petits Enfants du Nom de Custis
Edward Savage · March 10, 1798

Ophryosporus piquerioides (DC.) Benth. ex Baker
Artist not stated in the record · 19 Aug 1980

Watson and the Shark
John Singleton Copley · ca. 1778

Ophryosporus piquerioides (DC.) Benth. ex Baker
Artist not stated in the record · 13 Aug 1980

Ear ornament
Wari artist(s) · 650–1000 CE

Adiantum olivaceum Baker
Artist not stated in the record · 22 Feb 1996

Ear ornament
Wari artist(s) · 650–1000 CE

Mary Baker Eddy
Luella Varney Serrao, 11 Aug 1865 - after 1935 · Spring 1889

Young Woman with a Lute
Johannes Vermeer · ca. 1662–63

Pteris tripartita Sw.
Artist not stated in the record · May 1929 to Jul 1929
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. 87 matched · 24 examined · 2 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. 57194 matched · 40 examined · 25 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.