Charles says it's a Spit MkV, which would be right for an early version. (It's got the external armoured windscreen and the earlier hood, with flat sides and 'knock out' emergency panel.)
The clips on the entrance flap are for the crowbar, which wasn't fitted to the Mk1 in squadron service. It came about mainly due to problems experienced in the BoB, when many pilots wree trapped in the cockpit, often fatally, when trying to abandon the aircraft, because either the canopy jammed, or the air pressure, against the flat sides of the Perspex, prevented the canopy from being slid back at high speed, especially in a dive or uncontrolled spin. (The early canopy did not have the jettison pins and wires, and could only be slid back, not jettisoned.) The crow bar was to help lever the canopy open the first inch or two. Once that was achieved, it could then be slid back, as the 'vacuum' had been broken, and the slipstream assisted in its movement.
BTW, none of the squadrons mentioned were in Rhodesia, Bombay or East India. They all spent WW2 in the ETO and MTO.
The place names are squadron 'associations', and the names of the squadron. For example, 92 Squadron was 'East India' Squadron, originally only one Flight within the Squadron bearing this name, following 'gifts' of Spitfires from the East India Fund - monies raised by donation, in East India, some from ex-pats, to pay for Spitfires. As so many went to this squadron, they adopted the name 'East India', and this was eventually officially incorporated in the Squadron crest.
This practice was not uncommon, as funds were sent from all over what had once been, and still was in places, the British Empire, to help the war effort 'at home'.