What is Geschwaderkennung?

Geschwaderkennung meaning in German military terminology / glossary / dictionary is:
the two-character alphanumeric identification code used by a non-day-fighter Geschwader for unit identification, that appeared to the left of the fuselage Balkenkreuz on most World War II Luftwaffe aircraft. It also included two letters to the right of the cross, the third letter designating the aircraft’s individual identification, with the fourth letter designating the aircraft’s assigned squadron (Staffel) within the unit.


reference: Wikipedia: Glossary of German military terms