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. 18 shown for “Joseph S. Potter” — 64 records examined, 18 dropped by the rights gate.
Archives queried 2026-09-03 01:01 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Continental Porcelain Plate, Ohio
Joseph S. Potter · ca. 1878–89

Gentiana clausa Raf.
Artist not stated in the record · 4 Sep 1915

Continental Porcelain Plate, Alabama
Joseph S. Potter · ca. 1878–89

Festuca rubra L.
Artist not stated in the record · 5 Jun 1893

Continental Porcelain Plate, Kentucky
Joseph S. Potter · ca. 1878–89

Machaeranthera canescens (Pursh) A. Gray var. canescens
Artist not stated in the record · 16 Aug 1899

Continental footed porcelain cup, Virginia
Joseph S. Potter · 1878–89

Nathaniel Potter
Charles Balthazar Julien Févret de Saint-Mémin, 12 Mar 1770 - 23 Jun 1852 · 1804

Continental footed porcelain cup, Delaware
Joseph S. Potter · 1878–89

Quiscalus mexicanus prosopidicola
Artist not stated in the record · 1 Jun 1893

Vase (Old World)
Joseph S. Potter · ca. 1886–89

Vase (New World)
Joseph S. Potter · ca. 1886–89

Terracotta amphora (jar)
Andokides · ca. 530 BCE

Untitled
Unrecorded Edgefield District potter · ca. 1867–85

Tea Canister
Joseph Smith · 1769

Untitled
Unrecorded Edgefield District potter · ca. 1850–80

Untitled
Unrecorded Edgefield District potter · ca. 1850–80

Letter written by Mrs. Marion Potter to Armand De Rosset and John Potts Brown
Artist not stated in the record · September 7, 1857
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. 5788 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. 900647 matched · 40 examined · 16 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 01:01 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.