[Miguel]

Hello Rob:

I can see seven victories on the rudder.
Reading the list of victories/losses in Jochen Prien's Jagdfliegerverbände, Vols 9/I and 9/III, there is only one pilot in 7/JG54 with seven victories on May, 30 of 1942 : Uffz. Josef Brechtl.
His next one (8th) was on June,27 1942.

Hope that this can help

Saludos