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 “Glassmaking Mold” — 64 records examined, 14 dropped by the rights gate.
Archives queried 2026-09-03 14:23 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Glassmaking Mold
Artist not stated in the record · 1850–1900

Mosaic Glass Patella Cup
Unidentified (Roman Empire) · 1st century BC-2nd century AD

Glassmaking Mold
Artist not stated in the record · 1850–1900

Fragment of a Footed Bowl with Medici Family Arms
Unidentified (Murano, Venice, Italy) · ca. 1513-1534

Glassmaking Mold
Artist not stated in the record · 1850–1900

Ball Flask with Paten Reliefs
Unidentified (Roman) · 3rd Century A. D.

Glassmaking Mold
Artist not stated in the record · 1850–1900

Bowl
Unidentified

Pocket bottle
American Flint Glass Manufactory · 1769–74

Flask
Unidentified (Roman Empire) · 1st-4th century AD

Armorial tazza
Italian · 1499–1514

Amphora
Unidentified (Roman)

Bowl
Artist not stated in the record · 8th–9th century

Flask
Unidentified (Roman)

Candelabrum (one of a pair)
Artist not stated in the record · 18th century

Bottle
Unidentified

Gilded Green Bottle
Artist not stated in the record · 18th century

Bowl
Unidentified

Case Bottle with an Amorous Couple and a Lady with a Deer
Artist not stated in the record · first half 18th century

Vase
Unidentified

Bottle with European and Indian Figures
Artist not stated in the record · 18th century

Vase
Unidentified (Roman)

Swan-Neck Bottle (Ashkdan)
Artist not stated in the record · 19th century

Bowl
Unidentified
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. 124 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. 7733 matched · 40 examined · 14 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 14:23 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.