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. 12 shown for “Muhammad ibn Mahmud” — 24 records examined, 0 dropped by the rights gate.
Archives queried 2026-08-27 15:54 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.

Seal Ring with the Name of Hajji Muhammad ibn Mahmud
Artist not stated in the record · probably 16th century

Horary Quadrant
Muhammad ibn Mahmud · 10th century

"Farhad Carves a Milk Channel for Shirin", Folio 74 from a Khamsa (Quintet) of Nizami of Ganja
Nizami · dated 931 AH/1524–25 CE

Incense Burner of Amir Saif al-Dunya wa’l-Din ibn Muhammad al-Mawardi
Ja`far ibn Muhammad ibn `Ali · dated 577 AH/1181–82 CE

Long-Handled Spoon Inscribed in Arabic with Good Wishes
Mahmud ibn Muhammad ibn Abi al-Hasan · 11th century

Folio from a Mu'nis al-ahrar fi daqa'iq al-ash'ar (The Free Man's Companion to the Subtleties of Poems) of Jajarmi
Muhammad ibn Badr al-Din Jajarmi · dated 741 AH/1340–41 CE

Tombstone of Abu Sa'd ibn Muhammad ibn Ahmad al-Hasan Karwaih
Ahmad ibn Muhammad Astak · dated 545 AH/1150 CE

"Laila and Majnun in School", Folio 129 from a Khamsa (Quintet) of Nizami of Ganja
Nizami · dated 931 AH/1524–25 CE

"Marriage of Khusrau and Shirin", Folio 104 from a Khamsa (Quintet) of Nizami of Ganja
Nizami · dated 931 AH/1524–25 CE

"Bizhan Slaughters the Wild Boars of Irman", Folio from a Shahnama (Book of Kings)
Abu'l Qasim Firdausi · dated 741 AH/1341 CE

Folio from a Qur'an Manuscript
Ahmad ibn al-Suhrawardi al-Bakri · dated 707 AH/1307–8 CE

Opening Folio of the 26th Volume of the "Anonymous Baghdad Qur'an"
Ahmad ibn al-Suhrawardi al-Bakri · 706 AH/1306–7 CE
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. 179 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-27 15:54 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.