[Nokose]

One of the claims for 10Jun43 on Tony Woods list for Pfahler is a duplicate so there is 11 claims for Pe-2's instead of 12. If you look at the time, location and altitude it might help in seeing the overclaim or possible shared claim.
10. Fw Kurt Dombacher Pe-2 19:03 34333 (3000m)
12. Ofw Hans Pfahler LaGG-5 19:05 34413 (2800m)
12. Ofw Hans Pfahler Pe-2 19:07 34412(2700m)
10. Fw Rudolf Wagner Pe-2 19:09 34274 (2300m)
12. Ofw Hans Pfahler Pe-2 19:09 34274 (1900m)
10. Oblt Horst-Guenther von Fassong LaGG-5 19:11 34281 (2000m)
10. Lt Westner Pe-2 19:13 34413 (1000m)
12. Ofw Hans Pfahler Pe-2 19:15 34233 (500m)
10. Oblt Horst-Guenther von Fassong Pe-2 19:16 34232 (1000m)
10. Uffz Barsch Pe-2 19:17 34231 (100m)
12. Ofw Hans Pfahler Pe-2 19:18 35893 (100m)
10. Fw rudolf Wagner Pe-2 19:19 35861 (100m)
10. Oblt Horst-Guenther von Fassong Pe-2 19:20 35833 (100m)