F-4 according to the seller, Stab III./JG 51 F/G Smolensk, March 1942. Click to view large
Currently on offer here
" Luftwaffe Fighters - Combat on all Fronts " Vol 2 on news stands now ! Vol I still available from Mortons.
"..Along with part one, this is excellent bedtime reading matter...five stars" Rupert Garcia on amazon