Nomisma.org (numismatic linked-open-data ontology)

نوميسما ⁦(الأنطولوجيا المترابطة للمفاهيم النقدية)⁩

The collaborative Linked Open Data ontology for numismatic concepts — a shared vocabulary for coins, mints, issuing authorities, standards and classifications, founded in 2010 by the American Numismatic Society with Oxford-linked development and INC patronage, licensed CC-BY 3.0, with a SPARQL endpoint and documented APIs.