ScientificAmerican1918-04-27.jpg Scientific American 1915-01-16ThumbnailsScientific American 1915-01-16ThumbnailsScientific American 1915-01-16ThumbnailsScientific American 1915-01-16ThumbnailsScientific American 1915-01-16Thumbnails
A narrow escape from a German ruse: the decoy periscope mine.