query: #defaultView:ImageGrid
  SELECT ?item ?shelf ?itemLabel ?img WHERE {
    
    VALUES ?class_key {"124"}
  
    ?class wdt:P195 wd:Q56753539 .    # KTop
    ?class p:P195/pq:P1545 ?class_key .
    
    ?item wdt:P195 ?class .
    ?item wdt:P217 ?shelf .
    ?item p:P195/pq:P1545 ?item_key .  
  
    OPTIONAL {?item wdt:P18 ?img} .
  
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  } 
  ORDER BY ?class_key ?item_key