Wangerooge is the easternmost barrier island of the East Frisian Islands. This badge commenorates a Lighthouse that dated from 1602. Blown up early in WW1 (December 1914), it was rebuilt in 1933 and served as a dormitory for Hitler Youth and continues as a youth hostel to the present.

The history of the original lighthouse but unfortunately (for me) it's all in German:
http://www.wangerooger.leuchttuerme.net/wangerooge1.htm

Dsc08403.jpg (70.14 KB, 838 downloads)