query: SELECT ?item ?inv WHERE {
    ?item p:P195 ?collectionstatement .
    ?collectionstatement ps:P195 wd:Q160112 .
    ?item wdt:P31 wd:Q3305213 .
    ?item p:P217 ?invstatement .
    ?invstatement pq:P195 wd:Q160112 .
    ?invstatement ps:P217 ?inv . 
    FILTER(!REGEX(?inv,"^P\\d{6,6}$"))
    }