No. 2 Submarine Development Group Plaque

Cast in brass depicting what appears to be an Aladdin's Lamp pierced by a torpedo and a lightning bolt. Below is written "Science Technology Tactics". No. 2 Submarine Development Group was established by the USN in January 1949 for the sole purpose of solving the task of using submarines to detect and destroy enemy submarines. Overall in very good condition and heavy! 19 cm diameter.