@prefix bf: <http://id.loc.gov/ontologies/bibframe/> .
@prefix bflc: <http://id.loc.gov/ontologies/bflc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://stage.bcld.info/instances/494eacf8-4b48-49f9-a129-ef8fe0421749> a bf:Instance ;
    bf:adminMetadata [ a bf:AdminMetadata ;
            bf:agent <http://id.loc.gov/vocabulary/organizations/cbc> ;
            bf:date "2026-09-11T21:09:07.509306+00:00"^^xsd:dateTime ;
            bf:derivedFrom <http://id.loc.gov/resources/instances/11133708> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/incmp> ],
        [ a bf:AdminMetadata ;
            bflc:catalogerId "Unknown" ;
            bf:date "2026-09-11" ;
            bf:descriptionAuthentication <http://id.loc.gov/vocabulary/marcauthen/pcc> ;
            bf:descriptionLanguage <http://id.loc.gov/vocabulary/languages/eng> ;
            bf:descriptionLevel <http://id.loc.gov/ontologies/bibframe-2-6-0/> ] ;
    bf:extent [ a bf:Extent ;
            rdfs:label "79 volumes" ;
            bf:note [ a bf:Note,
                        <http://id.loc.gov/vocabulary/mnotetype/physical> ;
                    rdfs:label "illustrations (some folded)" ] ] ;
    bf:identifiedBy [ a bf:Lccn ;
            rdf:value "   04018124 " ] ;
    bf:instanceOf <https://stage.bcld.info/works/0bf2065c-e794-474b-8d8c-46dbaea1bd5b> ;
    bf:publicationStatement "Washington: G.P.O., 1883-1933" ;
    bf:title [ a bf:Title ;
            bf:mainTitle "Mineral resources of the United States" ] .