PI_0454/3/4-6 https://w3id.org/zericatalog/letter/id/pi0454346 an entity of type: E42_Identifier rdfs:label PI_0454/3/4-6 PI_0454/3/4-6 crm:P2_has_type zeri:shelfmark-number rdf:type crm:E42_Identifier data from the linked data cloud