The product is a collection of German WW1 cigarette cards titled "Der Weltkrieg 1914 - 1918." These cards likely feature various illustrations and propaganda related to the First World War. As collectibles, they hold historical significance and can provide insight into the culture and events of the time period. For collectors of tobacciana and military memorabilia, these cigarette cards offer a unique glimpse into the past and a tangible connection to the history of World War I.