In 1980 archaeologists investigated the graves of 185 Dutchmen – whale hunters and workmen of the train oil refineries – who had died on or near Spitsbergen during the 17th century. The skeletons were still wearing their knitted woollen caps. Each cap was individualized; the men recognized one another only by the pattern of stripes on the caps. The men were bundled up so tightly against the fierce cold that only their eyes were visible.