Memel-Nord battery. Jachman. The battery was named after German Vice-Admiral Eduard von Jachmann. The coastal defence artillery battery was built in the spring of 1939. The site is very often described by locals as “not preserved” and has not received any attention for a long time. In this coastal artillery battery, the four 150mm SKL-45 naval guns remained mounted only on temporary concrete platforms. A two-storey bunker was built nearby as a fire control post.