WWII German Headphones (Kopffernhörer) Model A- These are the basic headset used by the German Wehrmacht, and are marked Dfh.a (double headphones, model a) on each earpiece. This set includes a full-length cord with black finished metal double prong plug. Each bakelite earpiece is stamped with the date '44 along with an ordnance code “bmm”. Very good condition!