German WWII Luftwaffe Rangefinder Specialty Patch

German WWII Luftwaffe Rangefinder Specialty Patch-This patch was introduced in 1942. This is produced in blue gray badge cloth with white machine embroidered stylized wings and a gothic letter 'E'. This is a specialized trade badge for Flak artillery personnel, The 'E' for Entfernungsmesser (rangefinder). This is piped in twisted gold bullion for distinguished service. This is a cool patch, something we do no see very often. It does show wear but is in very good condition.