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 “United States Gauge Co.” — 64 records examined, 23 dropped by the rights gate.
Archives queried 2026-09-05 23:07 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Covered slop jar
United States Pottery Company · 1849–58
Valve, Check, Fuel Quantity
United States Gauge Co. · ca. 1935
Pitcher
United States Pottery Company · 1852–58
Valve, Check, Fuel Quantity
United States Gauge Co. · ca. 1939
Celery vase
United States Pottery Company · 1849–58
Indicator, Suction, F-4
United States Gauge Co.
Standing lion
Daniel Greatbatch · 1849–52
Indicator, Suction
United States Gauge Co.
Mars and Venus United by Love
Paolo Veronese (Paolo Caliari) · 1570s
Indicator, Oil Pressure
United States Gauge Co.
George Washington, First President of the United States
Nicolas Eustache Maurin · 1828
Indicator, Oil Pressure
United States Gauge Co. · ca. 1920
The Magnolia Vase
Tiffany & Co. · 1893
Indicator, Hydraulic Pressure, from B-25
United States Gauge Co.
Artistic houses : being a series of interior views of a number of the most beautiful and celebrated homes in the United States : with a description of the art treasures contained therein
D. Appleton & Co. · 1883–84
Indicator, De-Icing Pressure, G-2, AN5771-3
United States Gauge Co.
Covered Butter Dish
United States Pottery Company · 1849
Indicator, De-Icing Pressure, G-2, AN5771-3
United States Gauge Co.
Syrup Jug
United States Pottery Company · 1852–58
Indicator, Fuel Quantity
United States Gauge Co. · ca. 1943
Pitcher
United States Pottery Company · 1849–58
Indicator, Fuel Quantity
United States Gauge Co. · ca. 1938
Cuspidor
United States Pottery Company · 1849–56
Indicator, De-Icing Pressure, G-2, AN5771-3
United States Gauge Co.
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. 7171 matched · 24 examined · 4 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. 5475157 matched · 40 examined · 19 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 2026-09-05 23:07 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.