<span class="translation_missing" title="translation missing: es.blacklight.search.page_title.title, constraints: <span class="translation_missing" title="translation missing: es.blacklight.search.page_title.constraint, label: Lugar Geográfico, value: Peru ">Constraint</span> / <span class="translation_missing" title="translation missing: es.blacklight.search.page_title.constraint, label: Tema, value: Copper smelting ">Constraint</span>, application_name: Perú en la década de los 20s