Exellent teasers- but sorry to be pedant-
The Spitfire Mk VI was the first of the series to sport a 4 bladed prop,also an undernose vokes filter would be an accurate addition for an 'in theatre' Spit.
Not quite hexagonal bolt territory,but i am a Spitfire/Seafire nut*,and i resisted from posting since the Spitfire model was premiered in the October telegraph.
*only reason why i'm being a P.I.T.A rivet counter.