Hi, Jerry...
The first image... I don't know the (presumably) RAF unit, but the aircraft is an Italian Fiat G.50 fighter.
The He111 is SK+IO, an H-6 subtype, WNr.4279 attached to Sonderkommando Dora. On the LRG website page
http://www.luftwaffe-research-group....p?pages/SktzS/, the Stammkennzeichen database confirms these details, with the sources noted as 'Flugsport' (a wartime publucation), 'Aeroplane', the former LEMB website and here on TOCH, presumably in a previous (unspecified) thread.
Regards,
Paul