Chapter 4 - Contact and moored influence Mines: The German EM (Einheitsmine) Mine Series: The EMK and EMU MinesChapter 4 - Contact and moored influence Mines: The German EM (Einheitsmine) Mine Series: The EMS Mines
GERMAN UNDERWATERS ORDNANCE MINES
Chapter 4 - CONTACT AND MOORED INFLUENCE MINES
THE GERMAN EM (EINHEITSMINE) MINE SERIES

The EMR and EMR/K Mines. These mines were actually sweep-obstructiors utilizing an EMC mine case moored to an EMC anchor by a single or double length of 5/8-inch standard chain.