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 “Rock Crystal Pendant” — 64 records examined, 28 dropped by the rights gate.
Archives queried 2026-08-28 06:21 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

Pendant
Unidentified · 1600-1800

Table clock with calendar
Lucien Falize · 1881

Flagellation Pendant
Unidentified (Italian or Spanish), 16th-17th century · late 16th century

Bhairava
Artist not stated in the record · 16th century

Reliquary Pendant
Unidentified · 1500-1600

Watch
Pierre Vernede · ca. 1650

Pendant
Unidentified · 1600-1700

Set of jewelry
Artist not stated in the record · early 5th century BCE

Pendant
Unidentified · 1500-1600

Twenty-four-light chandelier (lustre) (one of a pair)
Artist not stated in the record · ca. 1790

Pendant
Unidentified · 1575-1625

Dagger with Sheath
Artist not stated in the record · 18th–19th century

Quartz (var. rock crystal)
Artist not stated in the record

Pendant
Artist not stated in the record · 16th century

Design for a Chandelier
Artist not stated in the record · late 18th century

Ganymede jewelry
Artist not stated in the record · ca. 330–300 BCE

Box
Artist not stated in the record · 1838–99

Watch
F. L. Meybom · ca. 1670–75

Quartz (var. rock crystal)
Artist not stated in the record

Pendant reliquary with depiction of the Annunciation
Artist not stated in the record · 17th century

Quartz (var. rock crystal)
Artist not stated in the record

Pendant reliquary with depiction of the Virgin Mary and St. John the Baptist
Artist not stated in the record · 16th century

Quartz (var. rock crystal)
Artist not stated in the record
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. 632 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. 111258 matched · 40 examined · 26 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 2026-08-28 06:21 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.