I originally thought that this hull was a change over from the Lynx I (mk.II) to the Lynx I (mk.III*), as this hull has indication that it was one of the original hulls with the vertical rear grill
and was modified to the later horizontal grill version.
There are 3 hinges on the rear hatch not two.
Both sides of the rear of the engine compartment have welded up holes and newer drilled holes for the horizontal grill mounts.
Left side.
Right side.
Mike C. tells me that the Lynxes’ supplied to Australia were of two rear body configurations: the early vertical rear grill and the later horizontal rear grill. In October 1944, a modification was authorized for all the early type to be converted to the later configuration using one of two Ford-supplied retrofit kits, either the C19SR-16604 or C19SR-110895. In theory, all Lynx were then converted to the latter type rear grill configuration which gave much better cooling performance, but I doubt that the ones held in vehicle parks ('Command Depot Stock') were high on the priority list, and possibly escaped conversion.
Cont.