Mezue ahịrịokwu na-esonụ: O sonyere n'ọtụtụ ihe ngosi mba ụwa, dị ka Nordic Exhibition nke 1888, World's Columbian Exposition na Exposition Universelle (1900), yana ihe ngosi mba dị ka
General Art na Industrial Ngosi nke Stockholm na Baltic Ngosi na e ọdịda ọtụtụ ihe nrite.