[Buckeye30]

Hi Graham...I don't think the "special" underside markings seen on Hurricane Is in Africa, Greece, Crete and Cyprus and Malta in 1940-41 were the ones on day fighters in Fighter Command (ie. UK-based) from Nov. 1940 to April 1941;
the black port wing on the Sky undersides was (as I understand it) applied on the squadrons or at Depots when maintenance required rather than in the factory, and was for daylight ops over N. Europe.They also had Sky spinners and fuselage bands.
The early (1940) Hurricane deliveries to Malta included a few at least in green-brown-black-white, some with the enlarged fuselage cockades. Some of these must have been transferred to Greece in the emergency. No doubt most were lost there or on Crete later, with little opportunity for re-paints.
The photo supposedly over Crete in early 1941 shows a black-white-aluminium underside ,the cockade outlined yellow( no tropical filter though).
The one over Cyprus (?) similar but different divisions, and tropicalised.
Some of the Finnish Hurricanes still had the early colours.
Nick