And from what I'm seeing, that vertical Gruppe bar was used during early '43 - I don't believe late summer '42. Not the same machine.
Not sure about that Chris, there are photos of 7 and 9 staffel machines with their yellow and white vertical bars plus a Stab machine with Black vertical bar all from the latter part of 1942.
All losses for May to Oct 42 are Bf109F-4's and F-4 Trops for III/JG53