This bloodline traces back the sires to what have been identified as the 3 foundation lines of the German Shepherd. Mutz von der Pelztierfame, Quanto von der Wienerau and Canto von der Wienerau.
The bloodlines may not be complete either because no information is available or the data has not yet been completed. 

Sire Bloodlines for
Gina vom Geiersnest
 
Howy vom Kahlenbach
Uran vom Kirschental
Drigon vom Fuhrmannshof
Enno vom Antrefftal