Natura ObscuraNo posterNatura Obscura2013Queuebrick VideoQueueLWatchedWFavoriteFListsDiscussionWhere to watchCopy short link2013Natura Obscura8m·DocumentaryDirected by Paolo Gioli·2013QueueLWatchedWFavoriteFWhere to watchListsRateRateNA/10 avgNo member ratings yetOverviewDiscussionA film made a single batch of 45 pin holes in a 50 cm hollow tube.DirectorPaolo GioliOverviewDiscussionCastCrewDetailsWhere to watchNo cast listed.