Die Inselwoche, a hectographed newspaper issued by German prisoners of war in an internment camp on Ile Longue, an island off of Brest in France, 1914-1919.

 Complete with advertisements:

 See: http://en.wikipedia.org/wiki/%C3%8Ele_Longue#First_World_War
and: http://www.accessmylibrary.com/coms2/summary_0286-31312207_ITM