Contact Mines Ready to be Laid

Contact Mines Ready to be Laid Military

Stock #: 358830
Type: Postcard
Era: Divided Back
Publisher: American Colortype Co
Size: 3.5" x 5.5" (9 x 14 cm)

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Additional Details:
Each one of these mines contains 100 pounds of gun cotton, and when laid explodes immediately when anything comes in contact with it, like the keel or side of a ship. Here you see a crew from the U.S. mine planter, General E. O. S. Ord, after mine-planting practice off Fort Du Pont. While not especially new, this type of marine mine has played an important part in the great European struggle, and has sent many ships to the bottom. These mines are laid in the entrance of harbors to prevent the entrance of hostile ships
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