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
Boy vom Pendel Bach
 
Fado von Karthago
Harro aus der Lechrainstadt
Dax von der Kesmarker Tränke
Racker vom Itztal