Very nice late war example, marked "GW" for Gottlieb & Wagner in Oberstein. I will pay extra shipping insurance for the buyer.
 
The criteria for the awarding of the Luftwaffe Flak Badge was based upon a points system. Points were given for the downing of enemy aircraft and the assistance of the downing of aircraft by searchlight or spotting units. After accruing 16 points, the badge would be awarded. Both officers and enlisted personnel were eligible for the award.